This article considers two arguments that purport to show that inductive reasoning is unjustified: the argument adduced by Sextus Empiricus and the (better known and more formidable) argument given by Hume in the Treatise. While Sextus’ argument can quite easily be rebutted, a close examination of the premises of Hume’s argument shows that they are seemingly cogent. Because the sceptical claim is very unintuitive, the sceptical argument constitutes a paradox. And since attributions of justification are theoretical, and the claim that (...) they are never (or seldom) true isn’t preposterous, the correct response to the paradox may well be to admit that the sceptic has exposed our error in making them. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Prophetic Evangelicals: Envisioning a Just and Peaceable Kingdom ed. by Bruce Ellis Benson, Malinga Elizabeth Berry, and Peter Goodwin Heltzel, and: Bearing True Witness: Truthfulness in Christian Practice by Craig HoveyGuenther “Gene” HaasReview of Prophetic Evangelicals: Envisioning a Just and Peaceable Kingdom EDITED BY BRUCE ELLIS BENSON, MALINGA ELIZABETH BERRY, AND PETER GOODWIN HELTZEL Grand Rapids, MI: Eerdmans, 2012. 225 pp. $35.00Review of Bearing True Witness: (...) Truthfulness in Christian Practice CRAIG HOVEY Grand Rapids, MI: Eerdmans, 2011. 258 pp. $27.00Christian thought and practice in North America—especially in the evangelical world—has undergone significant changes in recent years. Prophetic Evangelicals and Bearing True Witness deal with two areas where this is evident: first, the attention many evangelicals are now giving to social justice and peace and, second, their determination to witness to the truth about Christ in a manner consistent with the Christian gospel. Prophetic evangelicals is the name the editors apply to a new generation of evangelicals who believe that the gospel of Christ requires a commitment to proclaim and embody “the just and peaceable kingdom” (2). These evangelicals view Jesus as inaugurating “a new social order that is a radical alternative to the order of empire” (7).This trend among evangelicals to move beyond the preaching of the gospel in a narrow sense (over against the liberals’ emphasis on social justice) is the culmination of a trend that has been happening since the publication in 1947 of Carl Henry’s The Uneasy Conscience of Modern Fundamentalism. What is new about many younger evangelicals in recent decades is their embrace of the Anabaptist perspective on justice and peace. It is clear in the introductory and concluding chapters by the editors—with their appeals to John Howard Yoder and Stanley Hauerwas and their references to the “cultural captivity” of the church—that this is the trend they have in mind. One also reads hints of liberation theology in the editors’ references to the needs of the people being “holy” (12), to God’s being on the side of—and the gospel always being in favor of—the “least” (47), and to a critique of “the order of empire” (7). Of course, [End Page 221] non-Anabaptist evangelicals are also concerned with these themes as part of their commitment to justice and peace. But it is the distinctive emphasis of this book—with some exceptions among the contributors—that it highlights the ways Anabaptist evangelicals are prophetic.The chapters consist of expositions on the following biblical themes: creation, shalom, justice, kingdom, news, Mary, the cross, church, freedom, reconciliation, resurrection, and hope. The authors include a wide range of evangelicals: from a Kuyperian (Vincent Bacote on creation) to a committed Anabaptist (David Gushee on shalom), to postcolonial Christians (Gabriel Salguero on the cross, and Raymond Alfred on freedom). Although the term is slippery, the inclusion of two contributors raises the question about who the editors consider to be an “evangelical”: Helen Slessarov-Jamir (on justice) agrees with her students’ desire not to learn theology from “dead white men” (77) and embraces religious pluralism (85); Pamela Lightsey (on reconciliation) embraces liberalism and liberation theology and calls herself a “womanist theologian” (169).The chapters contain a diversity of contributions in length and quality. Some are good, short expositions of themes: creation (Bacote), kingdom (Christian Collins Winn), Mary—actually about suffering—(Ruth Padilla DeBorst), church (John Franke), and resurrection (Cherith Fee Nordling). Gushee’s chapter contains a good exposition of the Anabaptist view of shalom, along with typical sweeping statements about the “Constantinian compromise” and the evangelical compromise with the state (72). Two chapters deserve special recognition. Chris Boesel’s chapter, “News,” is an excellent account of the Christian call to justice as part of the full goodness of the gospel. He criticizes both liberal-progressive and evangelical-conservative assumptions about the church’s mission and calls for a “recovering evangelical faith” that pursues justice with repentance, humility, and a reliance on the Holy Spirit. Telford Work’s chapter, “Hope,” also articulates a perceptive critique of the activism of both the Christian Right and the Christian Left. Rejecting all alignments with worldly power, he calls on the... (shrink)

In management research, theory testing confronts a paradox described by Meehl in which designing studies with greater methodological rigor puts theories at less risk of falsification. This paradox exists because most management theories make predictions that are merely directional, such as stating that two variables will be positively or negatively related. As methodological rigor increases, the probability that an estimated effect will differ from zero likewise increases, and the likelihood of finding support for a directional prediction boils down to a (...) coin toss. This paradox can be resolved by developing theories with greater precision, such that their propositions predict something more meaningful than deviations from zero. This article evaluates the precision of theories in management research, offers guidelines for making theories more precise, and discusses ways to overcome barriers to the pursuit of theoretical precision. (shrink)

THE PRINCIPLE OF IDEALIST ETHICS Coleridge's well-known saying that every man is born either an Aristotelian or a Platonist, though not true in the sense ...

Ruth Garrett Millikan presents a strikingly original account of how we get to grips with the world in thought. Her question is Kant's 'How is knowledge possible?', answered from a contemporary naturalist standpoint. We begin with an understanding of what the world is like prior to cognition, then develop a theory of cognition within that world.

In lieu of an abstract, here is a brief excerpt of the content:The Pyrrhonian Revival in Montaigne and NietzscheJessica N. BerryMichel de Montaigne occupies a unique place in Nietzsche's history of ideas. He is one of a very few figures for whom Nietzsche expresses deep admiration and about whom he has virtually nothing critical to say. This is a rare enough mark of distinction; but contrary to what it might lead us to expect, the relationship between Montaigne and Nietzsche has (...) seldom been carefully examined. There has yet to be a book-length study devoted solely to Montaigne and Nietzsche,1 and article-length treatments of the relationship between their works and thought have been surprisingly scarce. What discussions there have been tend to locate the connections between Nietzsche and Montaigne mainly in matters of either literary or personal style,2 but studies that examine Montaigne's influence on Nietzsche with an eye toward philosophical rather than literary or stylistic issues have been almost non-existent.3 This dearth of treatments can be explained, at least in part, by the fact that, while Montaigne is rightly recognized for the literary merits of his work and for its subsequent influence on later prose stylists (and not only in French), his work on the whole has seldom been appreciated as having any philosophical value in its own right. Small wonder, then, that the connection between Montaigne and Nietzsche has [End Page 497] appeared more significant to commentators on Montaigne who are interested in tracing his influence on later thinkers than to scholars of Nietzsche—even those Nietzsche scholars who take an acute interest in his intellectual heritage. What I will argue here is that Montaigne makes a more concrete and philosophically more substantive contribution to Nietzsche's thought than has generally been appreciated; specifically, by giving impetus to the naturalism that develops in Human, All Too Human as an antidote to Schopenhauer's pessimistic metaphysics of will.In this essay, I present a two-fold thesis about Montaigne's influence on Nietzsche's early work. First, I will argue that the "naturalistic turn" in Human, All Too Human reflects Nietzsche's engagement with Montaigne during a crucial moment in the development of his thought. Second, I will demonstrate that the naturalism Nietzsche adopts from Montaigne has roots in the tradition of Pyrrhonian skepticism that Montaigne carries forward into the Renaissance. In the end, a better understanding of the skeptical ancestry of Nietzsche's naturalism should help us make better sense of Human, All Too Human and its immediate successors in Nietzsche's oeuvre, which cultivate what otherwise seems to be an uneasy partnership between naturalism and skepticism.I. It is by now widely accepted that Nietzsche's estimation of the value of the techniques and methods of the natural sciences undergoes radical revision in the period culminating in the first volume of Human, All Too Human (HAH),4 a book sometimes described as inaugurating a "positivist" phase in Nietzsche's work. From the first of its nine major sections, "Of First and Last Things," HAH narrates a struggle between science on the one hand and philosophy on the other. It is important to note the breadth of the extension of the term "science" (Wissenschaft), which includes not only what we think of as the "hard" or physical sciences (physics, chemistry, and the like) but also areas of inquiry we now consider "behavioral sciences" such as psychology and sociology—and, Nietzsche would say, philology as well. "Philosophy," by contrast is specified more narrowly. As Nietzsche uses the term throughout HAH, "philosophy" is usually shorthand for "metaphysical philosophy" and singles out for criticism the discourse of metaphysics that has dominated the philosophical landscape at least since Plato.In the sense in which Nietzsche worries about it "metaphysical philosophy" promotes speculation about such supra-sensible entities as Platonic forms, Descartes's "immaterial substances," and Kantian things-in-themselves. That its contributions include, for instance, theories about the existence and immortality of the soul accounts for Nietzsche's grouping "metaphysical philosophy" [End Page 498] together with religion and art as "arts of narcosis."5 Consciously or not they endeavor to comfort us by assuaging our fear of death, our existential anxieties about the purposelessness of... (shrink)

Advocates of “Mendelism” early on stressed the usefulness of Mendelian principles for breeders. Ever since, that usefulness—and the favourable opinion of Mendelism it supposedly engendered among breeders—has featured in explanations of the rapid rise of Mendelian genetics. An important counter-tradition of commentary, however, has emphasized the ways in which early Mendelian theory in fact fell short of breeders’ needs. Attention to intellectual property, narrowly and broadly construed, makes possible an approach that takes both the tradition and the counter-tradition seriously, by (...) enabling a more complete description of the theory-reality shortfall and a better understanding of how changing practices, on and off the Mendelians’ experimental farms, functioned to render that shortfall unproblematic. In the case of plant breeding in Britain, a perennial source of lost profits and disputes over ownership was the appearance of individual plants departing from their varietal types—so-called “rogues.” Mendelian plant varieties acquired a reputation for being rogue-free, and so for demonstrating the correctness of Mendelian principles , at a time when Mendelians were gradually taking control of the means for distributing their varieties. Mendelian breeders protected their products physically from rogue-inducing contamination in such a way that when rogues did appear, the default explanation—that contamination had somehow occurred—ensured that there was no threat to Mendelian principles. (shrink)

The most arresting aspect of the Scottish Enlightenment is its conception of commercial society as a distinct and distinctive social formation. Christopher Berry explains why Enlightenment thinkers considered commercial society to be wealthier and freer than earlier forms, and charts the contemporary debates and tensions between Enlightenment thinkers that this idea raised. The book analyses the full range of literature on the subject, from key works like Adam Smith's 'Wealth of Nations', David Hume's 'Essays and Treatises on Several Subjects' (...) and Adam Ferguson's 'Essay on the History of Civil Society' to lesser-known works such as Robert Wallace's 'Dissertation on Numbers of Mankind'. (shrink)

" Biosemantics " was the title of a paper on mental representation originally printed in The Journal of Philosophy in 1989. It contained a much abbreviated version of the work on mental representation in Language Thought and Other Biological Categories. There I had presented a naturalist theory of intentional signs generally, including linguistic representations, graphs, charts and diagrams, road sign symbols, animal communications, the "chemical signals" that regulate the function of glands, and so forth. But the term " biosemantics " (...) has usually been applied only to the theory of mental representation. Let me first characterize a more general class of theories called "teleological theories of mental content" of which biosemantics is an example. Then I will discuss the details that distinguish biosemantics from other naturalistic teleological theories. (shrink)

A list of groceries, Professor Anscombe once suggested, might be used as a shopping list, telling what to buy, or it might be used as an inventory list, telling what has been bought (Anscombe 1957). If used as a shopping list, the world is supposed to conform to the representation: if the list does not match what is in the grocery bag, it is what is in the bag that is at fault. But if used as an inventory list, the (...) representation is supposed to conform to the world: if the list does not match what is in the bag, it is the list that is at fault. The first kind of representation, where the world is supposed to conform to the list, can be called "directive"; it represents or directs what is to be done. The second, where the list is supposed to conform to the world, can be called "descriptive"; it represents or describes what is the case. I wish to propose that there exist representations that face both these ways at once. With apologies to Dr. Doolittle, I call them pushmi-pullyu representations or PPRs. (shrink)

Next SectionAn attempt to resolve the controversy regarding the solution of the Sleeping Beauty Problem in the framework of the Many-Worlds Interpretation led to a new controversy regarding the Quantum Sleeping Beauty Problem. We apply the concept of a measure of existence of a world and reach the solution known as ‘thirder’ solution which differs from Peter Lewis’s ‘halfer’ assertion. We argue that this method provides a simple and powerful tool for analysing rational decision theory problems.

The way a rational agent changes her belief in certain propositions/hypotheses in the light of new evidence lies at the heart of Bayesian inference. The basic natural assumption, as summarized in van Fraassen's Reflection Principle, would be that in the absence of new evidence the belief should not change. Yet, there are examples that are claimed to violate this assumption. The apparent paradox presented by such examples, if not settled, would demonstrate the inconsistency and/or incompleteness of the Bayesian approach, and (...) without eliminating this inconsistency, the approach cannot be regarded as scientific. The Sleeping Beauty Problem is just such an example. The existing attempts to solve the problem fall into three categories. The first two share the view that new evidence is absent, but differ about the conclusion of whether Sleeping Beauty should change her belief or not, and why. The third category is characterized by the view that, after all, new evidence is involved. My solution is radically different and does not fall into either of these categories. I deflate the paradox by arguing that the two different degrees of belief presented in the Sleeping Beauty Problem are in fact beliefs in two different propositions, i.e., there is no need to explain the change of belief. The Sleeping Beauty Problem The Problem Deflated 2.1 From contradiction to consistency 2.2 The inanimate version 2.3 Back to SB Summary CiteULike Connotea Del.icio.us What's this? (shrink)

This collection of essays serves both as an introduction to Ruth Millikan’s much-discussed volume Language, Thought, and Other Biological Categories and as an extension and application of Millikan’s central themes, especially in the philosophy of psychology. The title essay discusses meaning rationalism and argues that rationality is not in the head, indeed, that there is no legitimate interpretation under which logical possibility and necessity are known a priori. In other essays, Millikan clarifies her views on the nature of mental (...) representation, explores whether human thought is a product of natural selection, examines the nature of behavior as studied by the behavioral sciences, and discusses the issues of individualism in psychology, psychological explanation, indexicality in thought, what knowledge is, and the realism/antirealism debate. Table of Contents Preface Acknowledgments Introduction 1 In Defense of Proper Functions 2 Propensities, Exaptations, and the Brain 3 Thoughts without Laws 4 Biosemantics 5 On Mentalese Orthography, Part 1 6 Compare and Contrast Dretske, Fodor, and Millikan on Teleosemantics 7 What Is Behavior? A Philosophical Essay on Ethology and Individualism in Psychology, Part 1 8 The Green Grass Growing All Around: A Philosophical Essay on Ethology and Individualism in Psychology, Part 2 9 Explanation in Biopsychology 10 Metaphysical Antirealism? 11 Truth Rules, Hoverflies, and the Kripke-Wittgenstein Paradox 12 Naturalist Reflections on Knowledge 13 The Myth of the Essential Indexical 14 White Queen Psychology; or, The Last Myth of the Given References Index. (shrink)

The impact of Nietzsche's engagement with the Greek skeptics has never before been systematically explored in a book-length work - an inattention that belies the interpretive weight scholars otherwise attribute to his early career as a professor of classical philology and to the fascination with Greek literature and culture that persisted throughout his productive academic life. Jessica N. Berry fills this gap in the literature on Nietzsche by demonstrating how an understanding of the Pyrrhonian skeptical tradition illuminates Nietzsche's own (...) reflections on truth, knowledge, and ultimately, the nature and value of philosophic inquiry. This entirely new reading of Nietzsche's epistemological and ethical views promises to make clear and render coherent his provocative but often opaque remarks on the topics of truth and knowledge and to grant us further insight into his ethics-since the Greek skeptics, like Nietzsche, take up the position they do as a means of promoting well-being and psychological health. In addition, it allows us to recover a portrait of Nietzsche as a philologist and philosophical psychologist that has been too often obscured by commentaries on his thought. "The book addresses a number of central issues in Nietzsche's philosophy, including perspectivism and his conception of truth. The idea that his views in these areas owe much to the ancient Pyrrhonists casts them in an important new light, and is well supported by the texts. A lot of people from a lot of different areas in philosophy will have good reason to take notice." - Richard Bett, Johns Hopkins University. (shrink)

How the new conspiracists are undermining democracy—and what can be done about it Conspiracy theories are as old as politics. But conspiracists today have introduced something new—conspiracy without theory. And the new conspiracism has moved from the fringes to the heart of government with the election of Donald Trump. In A Lot of People Are Saying, Russell Muirhead and Nancy Rosenblum show how the new conspiracism differs from classic conspiracy theory, how it undermines democracy, and what needs to be (...) done to resist it. (shrink)

How the new conspiracists are undermining democracy—and what can be done about it Conspiracy theories are as old as politics. But conspiracists today have introduced something new—conspiracy without theory. And the new conspiracism has moved from the fringes to the heart of government with the election of Donald Trump. In A Lot of People Are Saying, Russell Muirhead and Nancy Rosenblum show how the new conspiracism differs from classic conspiracy theory, why so few officials speak truth to conspiracy, and (...) what needs to be done to resist it. Classic conspiracy theory insists that things are not what they seem and gathers evidence—especially facts ominously withheld by official sources—to tease out secret machinations. The new conspiracism is different. There is no demand for evidence, no dots revealed to form a pattern, no close examination of shadowy plotters. Dispensing with the burden of explanation, the new conspiracism imposes its own reality through repetition and bare assertion. The new conspiracism targets democratic foundations—political parties and knowledge-producing institutions. It makes it more difficult to argue, persuade, negotiate, compromise, and even to disagree. Ultimately, it delegitimates democracy. Filled with vivid examples, A Lot of People Are Saying diagnoses a defining and disorienting feature of today's politics and offers a guide to responding to the threat. (shrink)

I defend the historical definition of "function" originally given in my Language, Thought and Other Biological Categories (1984a). The definition was not offered in the spirit of conceptual analysis but is more akin to a theoretical definition of "function". A major theme is that nonhistorical analyses of "function" fail to deal adequately with items that are not capable of performing their functions.

In this article, we illuminate the affective phenomenon of loneliness by exploring the question of how it relates to love and other forms of friendship. We reflect in particular on the question of how different forms of loneliness are relevant to human existence. Distinguishing three forms of loneliness, we first introduce two border cases of loneliness: unfelt loneliness in which one’s individuality is denied and one therefore cannot feel lonely; and existential loneliness in which the possibility of intimacy and existential (...) communication are denied and one therefore cannot but feel lonely. We then turn to loneliness that occurs within intimate friendships—even the most intimate ones. In our analysis, we pay attention especially to the role of communication. In order to do so, we repeatedly turn to poetic expressions of loneliness. We argue that loneliness cannot reflect only the absence or partial failure of communication but also the inherent limits of communication. These limits in turn point back to the nature of human existence and love itself. (shrink)

Ruth Millikan is well known for having developed a strikingly original way for philosophers to seek understanding of mind and language, which she sees as biological phenomena. She now draws together a series of groundbreaking essays which set out her approach to language. Guiding the work of most linguists and philosophers of language today is the assumption that language is governed by prescriptive normative rules. Millikan offers a fundamentally different way of viewing the partial regularities that language displays, comparing (...) them to biological norms that emerge from natural selection. This yields novel and quite radical consequences for our understanding of the nature of public linguistic meaning, the process of language understanding, how children learn language, and the semantics/pragmatics distinction. (shrink)

Charles Taylor is one of the most influential and prolific philosophers in the English-speaking world today. The breadth of his writings is unique, ranging from reflections on artificial intelligence to analyses of contemporary multicultural societies. This thought-provoking introduction to Taylor's work outlines his ideas in a coherent and accessible way without reducing their richness and depth. His contribution to many of the enduring debates within Western philosophy is examined and the arguments of his critics assessed. Taylor's reflections on the topics (...) of moral theory, selfhood, political theory and epistemology form the core chapters within the book. Ruth Abbey engages with the secondary literature on Taylor's work and suggests that some criticisms by contemporaries have been based on misinterpretations and suggests ways in which a better understanding of Taylor's work leads to different criticisms of it. The book serves as an ideal companion to Taylor's ideas for students of philosophy and political theory, and will be welcomed by the non-specialist looking for an authoritative guide to Taylor's large and challenging body of work. (shrink)

A leading scholar in the psychology of thinking and reasoning argues that the counterfactual imagination—the creation of "if only" alternatives to ...

In Science as a Profession and Vocation, Max Weber presents a clear task to scientists: he claims that they have the responsibility to present uncomfortable knowledge to politicians, students and o...

There are many touch points between the work of Jacques Derrida and René Girard. To me, as a student of literature, these two writers particularly stand out as great readers or great exegetes.1 The way they handle and combine texts, the way they dare to break with reading conventions, has proved to be really fruitful.Some time ago I watched a documentary about Derrida, made by Kirby Dick and Amy Ziering Kofman, published in 2002, carrying the simple title Derrida.2 I found (...) that this experimental documentary at the same time reflected Derrida’s many reservations, not to say his skepticism, as to the possibility of making portraits—and—proved to be far more revealing, even intimate, than a conventional documentary... (shrink)

This encyclopedia entry provides an overview of the field of public health ethics. It focuses on what distinguishes public health ethics from other nearby subfields—especially biomedical ethics. It also frames the problems of public health ethics in terms of the concepts of justice and political legitimacy.

Robert Alexy develops his influential theory of legal reasoning exploring the nature of legal argumentation and its relation to practical reasoning. In doing so he sheds light on fundamental questions of law and rationality, which are as crucial to practising lawyers and law students as they are to scholars of legal theory.

This Element offers the first detailed study of Catharine Trotter Cockburn's philosophy and covers her contributions to philosophical debates in epistemology, metaphysics, moral philosophy, and philosophy of religion. It examines not only Cockburn's view that sensation and reflection are the sources of knowledge, but also how she draws attention to the limitations of human understanding and how she approaches metaphysical debates through this lens. In the area of moral philosophy, this Element argues that it is helpful to take seriously Cockburn's (...) distinction between questions concerning the metaphysical foundation of morality and questions concerning the practice of morality. Moreover, this Element examines Cockburn's religious views and considers her understanding of the relation between morality and religion and her religious views concerning the resurrection and the afterlife. (shrink)

Dirty hands cases are often seen as a crucial challenge for political ethics. Michael Walzer’s analysis of dirty hands cases has been especially influential. On closer inspection, however, Walzer’s analysis contains some serious flaws. This article examines how and to what extent the political ethics of Paul Ricoeur can remedy the problems in Walzer’s approach. It is shown that Ricoeur’s approach can offer a better understanding of what is at stake in dilemmas in political action and that it can provide (...) guidance for dealing with such issues. Ricoeur’s analysis, furthermore, provides the foundation for a more critical political ethics than Walzer can offer. (shrink)

This book provides a clear, simple account of techniques involved in assisted reproduction and embryo research. It thoughtfully and provocatively explores controversies raised by developments in reproductive technology since the first IVF baby in 1978, such as 'saviour siblings', designer babies, reproductive cloning and embryo research.

In this article, I provide a philosophical analysis of the nature and role of perceived identity threats in the genesis and maintenance of fanaticism. First, I offer a preliminary definition of fanaticism as the social identity-defining devotion to a sacred value that demands universal recognition and is complemented by a hostile antagonism toward people who dissent from one’s group’s values. The fanatic’s hostility toward dissent thereby takes the threefold form of outgroup hostility, ingroup hostility, and self-hostility. Second, I provide a (...) detailed analysis of the fears of fanaticism, arguing that each of the three aforementioned forms of hostile antagonism corresponds to one form of fear or anxiety: the fanatic’s fear of the outgroup, renegade members of the ingroup, and problematic aspects of themselves. In each of these three forms of fear, the fanatic experiences both their sacred values and their individual and social identity as being threatened. Finally, I turn to a fourth form of fear or anxiety connected to fanaticism, namely the fanatic’s anxiety of and flight from the existential condition of uncertainty itself, which, at least in some cases, ground the fanatic’s fearfulness. (shrink)

Offers an analysis of three strongly contrasting primitive civilizations, showing how behavior is influenced by custom and tradition.

In this interview, Ruth Groff discusses how she came to be a realist, her role as a community organizer, her relationship to critical realism, and various issues arising from her published work over the years. Discussion ranges across the nature of positivism and its legacy, the concept of falsehood, realism about causal powers, mind-independent reality, the history of philosophy, and the underlying interest in ideology-critique that runs through her thinking.