Essentialists claim that at least some individuals or kinds have essences. This raises an important but little-discussed question: how do we come to know what the essence of something is? This paper examines Aristotle’s answer to this question. One influential interpretation (viz., the Explanationist Interpretation) is carefully expounded, criticized, and then refined. Particular attention is given to what Aristotle says about this issue in DA I.1, APo II.2, and APo II.8. It is argued that the epistemological claim put forward in (...) DA I.1 differs from that put forward in APo II.2 and II.8, contrary to what has been claimed by Explanationists, and that each of these distinct epistemological claims rests on a distinct non-epistemological thesis about essence. Consequently, an ‘Enriched Explanationist Interpretation’ is developed which takes into account both of the aforementioned elements in Aristotle’s epistemology of essence. The paper concludes by highlighting an insight the preceding exegetical discussion offers to contemporary essentialists seeking to explain how we come to know what something’s essence is. (shrink)

There are several innocuous or trivial ways in which to explicate Aristotle’s hylomorphism. For example: objects are characterisable in terms of matter and form; or analysable into matter and form; or understood on the basis of matter and form. Serious problems arise when we seek to specify the sorts of relation holding among the different contributors to the hylomorphic picture. Here are some central general questions: a. What types of relation are most suitable for each n-tuple of contributors? b. What (...) direction and modal profile should each relation have? In addressing such questions we find that the types, directions, or modal character of the relations that we or Aristotle may favour are often in tension with each other, or clearly lead to inconsistencies. The paper focuses on the Modal Question, also known as ‘Ackrill’s problem’: is form essentially or contingently related to matter? I outline a hylomorphic model, what I label the ‘causal-explanatory’ model, and show how it can tackle M. (shrink)

I argue that in the Phaedo, Plato maintains that the soul is located in space and is capable of locomotion and of interacting with the body through contact. Numerous interpreters have dismissed these claims as merely metaphorical, since they assume that as an incorporeal substance, the soul cannot possess spatial attributes. But careful examination of how Plato conceives of the body throughout his corpus reveals that he does not distinguish it from the soul in terms of spatiality. Furthermore, assigning spatial (...) attributes to the soul plays an important role in Plato’s account of the relation of body and soul. (shrink)

For Aristotle, demonstrative knowledge is the result of what he calls ‘intellectual learning’, a process in which the knowledge of a conclusion depends on previous knowledge of the premises. Since demonstrations are ultimately based on indemonstrable principles (the knowledge of which is called ‘νοῦς’), Aristotle is often described as advancing a foundationalist doctrine. Without disputing the nomenclature, I shall attempt to show that Aristotle’s ‘foundationalism’ should not be taken as a rationalist theory of epistemic justification, as if the first principles (...) of science could be known as such independently of their explanatory connections to demonstrable propositions. I shall argue that knowing first principles as such involves knowing them as explanatory of other scientific propositions. I shall then explain in which way noetic and demonstrative knowledge are in a sense interdependent cognitive states – even though νοῦς remains distinct from (and, in Aristotle’s words, more ‘accurate’ than) demonstrative knowledge. (shrink)

ABSTRACTThe acquisition of a skill, or knowledge-how, on the one hand, and the acquisition of a piece of propositional knowledge on the other, appear to be different sorts of epistemic achievements. Does this difference lie in the nature of the knowledge involved, marking a joint between knowledge-how and propositional knowledge? Intellectualists say no: All knowledge is propositional knowledge. Anti-intellectualists say yes: Knowledge-how and propositional knowledge are different in kind. What resources or methods may we legitimately and fruitfully employ to adjudicate (...) this debate? What is the right way to show the nature of the knowledge knowers know? Here too there is disagreement. I defend the legitimacy of the anti-intellectualist appeal to cognitive neuroscientific findings against a recent claim that anti-intellectualists conflate the scientific categories of procedural and declarative knowledge with the mental kinds of skill and propositional knowledge, respectively. I... (shrink)

There is a current debate about the grammar of intention: do I intend to φ, or that I φ? The equivalent question in Aristotle relates especially to choice. I argue that, in the context of practical reasoning, choice, as also wish, has as its object an act. I then explore the role that this plays within his account of the relation of thought to action. In particular, I discuss the relation of deliberation to the practical syllogism, and the thesis that (...) the conclusion of the second is an action. (shrink)

_ Source: _Volume 63, Issue 3, pp 257 - 292 It is commonly assumed that Aristotle defines a sense by reference to its ability to perceive the items that are proper to that sense, and that he explains perceptions of unities of these items, and discriminations between them, by reference to what is called the ‘common sense’. This paper argues in contrast that Aristotle defines a sense by reference, not only to its ability to perceive the proper items, but also (...) to its ability to discriminate between them, and thus aims to show that Aristotle’s theory of sense perception is basically a theory of perceptual discrimination. (shrink)

It is now common to explain some of incidental perception’s features by means of a different capacity, called phantasia. Phantasia, usually translated as ‘imagination,’ is thought to explain how incidental perception can be false and representational by being a constitutive part of perception. Through a close reading of De Anima 3.3, 428b10–29a9, I argue against this and for perception first: phantasia is always a product of perception, from which it initially inherits all its characteristics. No feature of perception is explained (...) directly by phantasia, and phantasia is never a part of perception. Phantasia is not imagination or representation, as many have thought, but perception-like appearance. Aristotle thus recognizes alongside three different types of perception three different types of perception-like appearance. (shrink)

ABSTRACTThe important role played by Aristotle in Martin Heidegger’s path towards Being and Time during the 1920's is now well documented. Yet an important chapter of this story remains mostly unexplored: Heidegger's early attempt to develop an ontology of life in dialogue with Aristotle. This is because the early seminars in which Heidegger developed his important and highly original interpretation of Aristotle's De Anima remain unpublished : one seminar from the summer of 1921 and one spanning the winter semester of (...) 1922/23 and the summer semester of 1923. In the present paper, I reconstruct Heidegger's key interpretative moves in the latter seminar on the basis of a detailed handwritten transcript preserved among the papers of his student Helene Weiss held at Stanford University. What emerges is a dialogue between Aristotle and Heidegger that enables us better to understand and to question the thought of both philosophers on the phenomenon of life. (shrink)

Aristotle claims that "although we perceive particulars, perception is of universals; for instance of human being, not of Callias-the-human-being" (APo II.19 100a16-b1). I offer an interpretation of this claim and examine its significance in Aristotle's epistemology.

I argue that a study of the Nicomachean Ethics and of the Parva Naturalia shows that Aristotle had a notion of attention. This notion captures the common aspects of apparently different phenomena like perceiving something vividly, being distracted by a loud sound or by a musical piece, focusing on a geometrical problem. For Aristotle, these phenomena involve a specific selectivity that is the outcome of the competition between different cognitive stimuli. This selectivity is attention. I argue that Aristotle studied the (...) common aspects of the physiological processes at the basis of attention and its connection with pleasure. His notion can explain perceptual attention and intellectual attention as voluntary or involuntary phenomena. In addition, it sheds light on how attention and enjoyment can enhance our cognitive activities. (shrink)

I explain what Aristotle means when, after puzzling about the matter of motion in incomplete animals (those without sight, smell, hearing), he suggests in De Anima III 11.433b31–434a5 that just as incomplete animals are moved indeterminately, desire and phantasia are present in those animals, but present indeterminately. I argue that self-motion and its directing faculties in incomplete animals differ in degree but not in kind from those of complete animals. I examine how an object of desire differs for an incomplete (...) animal. Using a comparison with Aristotle’s account of recollection, especially in unfavorable circumstances, I describe indeterminate self-motion. Finally, I discuss implications for our understanding of Aristotle’s accounts of the faculties of the soul and incomplete animals. (shrink)

Recent interpreters portray Aristotle as a Protagorean antirealist, who thinks that colors and other perceptibles do not actually exist apart from being perceived. Against this, I defend a more traditional interpretation: colors exist independently of perception, to which they are explanatorily prior, as causal powers that produce perceptions of themselves. They are not to be identified with mere dispositions to affect perceivers, or with grounds distinct from these qualities, picked out by their subjective effect on perceivers (so-called “secondary qualities”). Rather, (...) they are intrinsic qualities of objects, which are in reality just as they appear to be. At the same time, Aristotle rejects any “simple theory of color” according to which the essence and nature of colors is fully revealed in experience. Although the character of perceptibles as they are experienced is “better known to us,” their essence and nature only comes to be known through a correct theory. (shrink)

In De Anima 1.4, Aristotle asks whether the soul can be moved by its own affections. His conclusion—that to say the soul grows angry is like saying that it weaves and builds—has traditionally been read on the assumption that it is false to credit the soul with weaving and building; I argue that Aristotle’s analysis of psychological motions implies his belief that the soul does in fact weave and build.

This paper concerns Plato’s characterization of the body as the soul’s tool. I take perception as an example of the body’s usefulness. I explore the Timaeus’ view that perception provides us with models of orderliness. Then, I argue that perception of confusing sensible objects is necessary for our cognitive development too. Lastly, I consider the instrumentality relationship more generally and its place in Plato’s teleological worldview.

The thus far little noticed element in Aristotle's definition of the soul – namely, its nexus to the particularities of a complex physical body (σῶμα φυσικόν / sôma physikon) – is the key to resolve three apparent inconsistencies of Aristotelian hylomorphism: First, the incompatible modalities of the assumed binding relation between physical body as a simultaneously functional matter and the soul as its form; second, the homonymy problem, i.e., that, according to Aristotle's own statement, a body’s remnant that was abandoned (...) by its soul can only homonymously be called that which it was when it was alive; third, the problem that form in hylomorphism seems to be nothing but a configuration of material parts, which, though conceptualised in abstraction and independent from matter, would nevertheless add nothing new to the material composition in which it is instantiated. If that were so, how, then, can a hylomorphic theory conceive of form as ontologically separate from matter? Without a comprehensive and comprehensible resolution of those three major aporias – that is in line with today’s scientific conception of the world – Aristotle’s definition of the soul as form-without-matter would, in Ackrill's words, ‘resist interpretation’. This paper shows that such a resolution can in fact be achieved and that Aristotle’s hylomorphism allows for a plausible and consistent interpretation. (shrink)

Is reality one or many? If one, is there exactly one thing or exactly one kind of thing? And is this one (kind of) thing material or immaterial? These questions.

Sense experience, naïvely conceived, is a way of knowing perceptible properties: the colors, sounds, smells, flavors, and textures in our perceptual environment. So conceived, ordinary experience presents the perceiver with the essential nature of a property like Sky Blue or Middle C, such that how the property appears in experience is identical to how it essentially is. In antiquity, as today, it was controversial whether sense experience could meet the conditions for knowledge implicit in this naïve conception. Aristotle was a (...) partisan in this debate, but his position is poorly understood. This dissertation examines how Aristotle’s perceptual psychology responds to ancient challenges to the naïve conception, and so articulates his defense of perceptual knowledge. -/- Aristotle’s defense relies on an ontology of “perceptual qualities"—a core class of perceptible properties—according to which those qualities, despite having a perceiver-independent essence rooted in the physics of causation and affection, nevertheless can be present in experience as they essentially are. Chapter 1 defends this realist and objectivist reading against competing interpretations, which overlook a crucial distinction between perceptual qualities and perceptual objects. Chapter 2 presents Aristotle’s ontology as a physicalism that uncharacteristically allows for perceptual qualities to appear in experience as they essentially are. -/- This ontology informs Aristotle’s account of the psychological conditions under which perceivers actually are presented with the essence of perceptual qualities. The locus of this account is an obscure passage where Aristotle purports to show that the senses “discriminate” perceptual qualities because the senses are “mean states” (An. 2.11, 424a5–7). Chapter 3 develops a comprehensive interpretation of the sensory mean state, which Chapter 4 uses to elucidate Aristotle’s argument for sensory discrimination. Sensory discrimination turns out to be a process in which the essence of a perceptual quality comes to be present in the affection it produces in a perceiver. For Aristotle, this shows that sense perception meets a condition for knowledge that his predecessors, including Plato, thought it could not meet. For in his view, but not in theirs, sense experience shares in both the truth and the essence of the qualities it perceives. (shrink)

This project explores the topic of dependency of happiness on external goods in Nicomachean Ethics. In this project I defend the following thesis: the dependency of happiness on external goods, in EN, is interpreted in the light of its political self-sufficiency, and in the light of our political humanity; this dependency is of three kinds: 1) enhancing-instrumental, 2) constitutive, and 3) subsistent. The political self-sufficiency of happiness means that, the ultimate good of man, the good of the ruling science of (...) Politics, is self-sufficient based on the self-sufficiency of the city. According to Aristotle, every human being, by nature, is political. The nature of every human being is fundamentally relational. We are what we are, among and with others in the city. This constitutive political human nature functions best only in the city. Based on this political anthropology I interpret the dependency of the human political good on external goods in EN. (shrink)

In this thesis I am going to explore the relationship between happiness and imprisonment. I will discuss three theories of happiness - hedonism, life satisfaction theories and emotional states theories. I will argue that the main problem of these theories is that they take happiness to consist only of psychological states. Because of this, I will turn my attention towards those theories that evaluate happiness in terms of how well life is going for the person who is living it. I (...) will argue that my Aristotelian account is the most plausible way to understand the relationship between happiness and imprisonment. This is because it takes into account both the external circumstances and the psychological and emotional life of pnsoners. Through this thesis, I will show that my account of happiness in prison accomplishes three tasks: i) it solves the problems encountered by the other theories of happiness in the evaluation of prisoners' happiness, ii) it does not suffer from two of the main objections to the other objectivist theories of happiness, and iii) it can help us to investigate the happiness of prisoners empirically more accurately. (shrink)