The famous middle Byzantine alchemical manuscript Marcianus graecus 299 contains annotations from the late Byzantine period, most prominently in its opening quire. This article examines a text on the very first page of the manuscript, a text written in a late Byzantine Greek script, but in a language other than Greek. A number of words in this undeciphered text can be correlated with Arabic technical vocabulary that would also have been used in other Islamicate languages such as Persian and Ottoman (...) Turkish. Certain features such as accentuation on the final syllables of words make Turkish or Persian the most likely candidates. (shrink)

This article examines the dedicatory epigram of the earliest and most important witness to the Greek alchemical corpus, the tenth-century manuscript donated by Cardinal Bessarion to the Republic of Venice, Biblioteca Nazionale Marciana MS gr. 299, as a window onto the cultural coordinates of the manuscript’s middle Byzantine readers. Scrutiny of the epigram’s meter, language, literary conventions, and the handwriting of the scribe who copied it into the manuscript point to a tenth-century date not only for the manuscript but also (...) for the epigram itself and make it possible to situate the epigram, and with it the alchemical manuscript that contains it, within the mainstream of middle Byzantine elite culture. (shrink)

This article investigates several discussions of “chemistry,” understood as an analysts’ category referring to theories and practices dealing with the structure and transformation of matter. By reading these texts (a treatise defending kīmiyāʾ by al-Fārābī, the famous passage from Ibn Sīnā’s Shifāʾ on transmutation, Ibn Taymiyyah’s fatwā against kīmiyāʾ, Michael Psellos’s treatise On Making Gold, and the same author’s Accusation against a sitting Patriarch of Constantinople), the article aims to lay the groundwork for integrating the historiography of Byzantine and Arabic (...) alchemy into a wider western Eurasian intellectual history. (shrink)

Thābit b. Qurra, a Sabian of Ḥarrān, and his descendants remained in their ancestral religion for six generations. Why did they persist despite pressure to convert? This article argues that religious self-identification as a Sabian could be a distinct advantage in Baghdad’s elite circles. It focuses on Thābit’s great-grandson Abū Isḥāq Ibrāhīm b. Hilāl al-Ṣābī and his poetry as collected by al-Thaʿālibī. Two members of the family who did convert are also considered by way of contrast.

This essay analyzes the known evidence for Byzantine engagement with what are conventionally termed “alchemical” texts, theories, and practices of the Islamic world. Much of the evidence is difficult to date. Nevertheless, the aggregated direct, indirect, and circumstantial evidence suggests at least some engagement by Greek-speaking scholars throughout the Middle Ages. This engagement took various forms, from the use of Arabic, Persian, and Turkish terminology to the adaptation of whole Arabic treatises in Greek. Sometimes the Byzantine texts emphasize their Islamicate (...) sources, and sometimes they do not mention these sources at all. The resulting picture is still fragmentary, but it indicates that medieval Greek-speaking scholars were active in the circulation of chemical knowledge and techniques in the Mediterranean and Middle East. Byzantium, therefore, should no longer be left out of research into long-term patterns in the history of science. (shrink)

Partir à la rencontre d'artisans ou observer des plasticiens contemporains à l'oeuvre ; enquêter au sein d'écoles d'art, interviewer des compositeurs et auteurs ; se plonger dans les partitions du XVIIème siècle, étudier les fonds d'archives «rock» de la Bibliothèque Nationale de France ; ou encore écumer les rayonnages «rap» d'une discothèque : comment les chercheurs en sciences sociales peuvent-ils appréhender la création artistique?

Human chromosome 11p15 comprises two imprinted domains important in the control of fetal and postnatal growth. Novel studies1-3 establish that imprinting at one of these, the IGF2-H19 domain, is epigenetically deregulated (with loss of DNA methylation) in Silver-Russell Syndrome (SRS), a congenital disease of growth retardation and asymmetry. Previously, the exact opposite epigenetic alteration (gain of DNA methylation) had been detected at the domain's ‘imprinting control region’ (ICR) in patients with Beckwith-Wiedemann Syndrome (BWS), a complex disorder of fetal overgrowth. However, (...) more frequently, BWS is caused by loss of DNA methylation at the ICR that regulates the second imprinted domain at 11p15. Interestingly, a similar epigenetic alteration (with loss of methylation) at a putative ICR on human chromosome 6q24, is involved in transient neonatal diabetes mellitus (TNDM), a congenital disease with intrauterine growth retardation and a transient lack of insulin. Thus, fetal and postnatal growth is epigenetically controlled by different ICRs, at 11p15 and other chromosomal regions. BioEssays 28: 453–459, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

Among the very architects of the recent re-emergence of emergentism in the physical sciences, Robert B. Laughlin certainly occupies a prominent place. Through a series of works beginning as early as his Nobel lecture in 1998, a lecture given after having been awarded, together with Störmer and Tsui, the Nobel prize in physics for its contribution in the elucidation of the fractional quantum Hall effect, Laughlin openly and relentlessly advocated a strongly anti-reductionistic view of physics – and, more particularly, of (...) the interface between condensed matter and particles physics – which culminated in what can be considered his emergentist manifesto: A Different Universe. Reinventing Physics from the Bottom Down (2005). In spite of this prominent role in the vindication of emergentism, rare are the philosophers, among whom even those sympathetic to the idea of emergence, who have paid serious attention to Laughlin’s insights. The subtleties of his view – it is true, often concealed in many technicalities – have accordingly, and somewhat unfortunately, mainly passed unnoticed. (shrink)

This article explores the common points and the differences between Hans Kelsen’s and Robert Alexy’s application theories. Although Kelsen subscribed to moral relativism and denied the idea of a practical reason, while Alexy criticised moral relativism and defended the idea of a communicative reason, it is argued that the two theories share important common features, such as denying that interpretation can point one single answer as the right one and acknowledging that interpretation is comprised by both knowledge and will. The (...) article acknowledges that there are differences between both theories, analyses whether these differences are qualitative or quantitative and, in the end, concludes that between the two theories there is not disruption, as one might believe, but rather continuity. (shrink)

On Tyranny is Leo Strauss's classic reading of Xenophon's dialogue, Hiero or Tyrannicus, in which the tyrant Hiero and the poet Simonides discuss the advantages and disadvantages of exercising tyranny. This edition includes a translation of the dialogue, a critique of the commentary by the French philosopher Alexandre Kojève, Strauss's restatement of his position in light of Kojève's comments, and finally, the complete Strauss-Kojève correspondence. "Through [Strauss's] interpretation Xenophon appears to us as no longer the somewhat dull and flat (...) author we know, but as a brilliant and subtle writer, an original and profound thinker. What is more, in interpreting this forgotten dialogue, Strauss lays bare great moral and political problems that are still ours." —Alexandre Kojève, Critique "On Tyranny is a complex and stimulating book with its 'parallel dialogue' made all the more striking since both participants take such unusual, highly provocative positions, and so force readers to face substantial problems in what are often wholly unfamiliar, even shocking ways." —Robert Pippin, History and Theory "Every political scientist who tries to disentangle himself from the contemporary confusion over the problems of tyranny will be much indebted to this study and inevitably use it as a starting point."—Eric Voegelin, The Review of Politics Leo Strauss (1899-1973) was the Robert Maynard Hutchins Distinguished Service Professor of Political Science at the University of Chicago. (shrink)

O presente artigo explora a attitude ambígua de Robert Burton face aos Jesuítas, centrando-se na sua leitura dos Commentarii Collegii Conimbricensis Societatis Iesu. Após uma contextualização da sua detecção da Companhia de Jesus nas peças teatrais de Burton, passo em revista as referências do académico à articulação da melancholia nos manuais do curso conimbricense ao longo da Anatomia da Melancolia. Por forma a identificar e compreender as especificidades da sua leitura, pautada por adaptações selectivas e imprecisões, empreenderei uma apresentação da (...) doutrina dos temperamentos dos Conimbricenses. Sustento que, apesar da sua riqueza, da qual os ecos na obra de Burton dão testemunho esmaecido, a abordagem de De Góis permaneceu como um episódio obliterado na história médica e intelectual da melancolia. Este percurso permitirá uma compreensão das perspectivas terapêutica e organizacional subjacentes ao ensino conimbricense. Trata-se, como se tornará evidente, de valências e aplicações dos Commentarii que Burton ignora. Ironicamente, uma parte significativa do seu conhecimento das terras distantes, as suas viagens por “mapa e carta” e as suas perspectivas socioeconómicas sobre a China, aspectos centrais da transição de uma observação da melancolia para uma observação melancólica, bem patente no recurso à sátira e à utopia como vias terapêuticas, está consideravelmente dependente da articulação entre as capacidade formativa e a organização das missões jesuíticas. (shrink)

Vor dem Hintergrund fanatischer religiöser Konflikte und in Kenntnis der im 17. Jahrhundert aufblühenden exakten Wissenschaften entwickelte Spinoza einen der anspruchsvollsten Entwürfe der Philosophiegeschichte: seine in geometrischer Ordnung dargestellte Ethik. Sie handelt von der Ontologie, Erkenntnislehre, den menschlichen Gefühlen und der Freiheit und Unfreiheit Einzelner wie auch der sozialer Gemeinschaften in einem einzigen durchgehenden Argumentationsgang. Das Werk verbindet auf diese Weise die höchsten Ansprüche begrifflicher und begründender Durchsichtigkeit mit von Lebenserfahrung gesättigter Weisheit. Es versteht sich selbst als eine Anleitung zum (...) Glück für die, die bereit sind, sich nur auf ihre Vernunft und nicht auf Autoritäten zu verlassen. Bis heute ist das Buch Maßstab aufgeklärter theoretischer und praktischer Vernunft geblieben. Seine fünf Teile werden in diesem kollektiven Kommentar durch jeweils drei Aufsätze erläutert. Eine Einleitung schildert die Ambitionen und historischen Folgen der "Ethik". Mit Beiträgen von: Francis Aman, Wolfgang Bartuschat, Thomas Cook, Herman De Djin, Christof Ellsiepen, Stephen Gaukroger, Michael Hampe, Thomas Kisser, Alexandre Matheron, Pierre-François Moreau, Michael Pauen, Dominik Perler, Ursula Renz, Michael Della Rocca, Robert Schnepf, Manfred Walther und Jean-Claude Wolf. (shrink)

Résumé — Alexandre d’Aphrodise a été étudié plus intensément en Europe continentale que dans le monde anglophone. Cet article s’interroge sur les raisons culturelles d’un tel fait. L’une des raisons de l’étude de la philosophie antique en général dans le monde anglophone est la volonté de montrer qu’elle est reliée, et peut rendre service, à des débats philosophiques contemporains. Un cas emblématique nous est fourni par le débat concernant le libre arbitre et le déterminisme. Susanne Bobzien a défendu la (...) thèse qu’alors que les termes du débat contemporain peuvent être décelés au IIe siècle après J.-C., et en particulier dans le traité d’Alexandre Sur le destin, il serait anachronique de les faire remonter à la période hellénistique. La partie finale du présent article se penche sur la façon dont elle rend compte de l’approche post-hellénistique de la question, vue comme le développement, à partir d’un certain nombre de textes aristotéliciens, d’une nouvelle doctrine de la contingence, reflétée dans une série de textes généralement décrits comme médioplatoniciens. On se demande, finalement, quelle relation il faut supposer entre ce développement et les changements, dans la forme et dans le fond, du déterminisme stoïcien.L’accident du déterminisme— Alexander of Aphrodisias has been studied more intensively in continental Europe than in the English-speaking world. This paper examines the cultural reasons for this. One factor in the study of ancient philosophy generally in the English-speaking world is the pressure to show that it relates to, and can be of service in, contemporary philosophical debates. One such case is the debate concerning free-will and determinism. Susanne Bobzien has argued that while the terms of the contemporary debate can be recognised in the second century AD, and in particular in Alexander’s treatise On Fate, it is anachronistic to read them back into the Hellenistic period. The latter part of the present paper examines her account of the origin of the new approach to the question in the development from a number of Aristotelian texts of a new account of contingency, reflected in a range of texts commonly described as Middle Platonist, and asks what relation we should suppose between this development and changes in the formulation and conception of Stoic determinism. (shrink)

The 1963 publication in English of Leo Strauss's study of Xenophon's dialogue, Hiero, or Tyrannicus, also contained a critical review of Strauss's interpretation by the French philosopher and civil servant, Alexandre Kojève, and a "Restatement" of his position by Strauss. This odd triptych, with a complex statement of the classical position on tyranny in the middle, Strauss's defense of classical philosophy on one side, and Kojève's defense of a radically historicist, revolutionary Hegel on the other, has now been re-edited (...) and re-published. Victor Gourevitch and Michael Roth have added all the extant letters between Strauss and Kojève written between 1932 and 1965, many of which continue and deepen the exchanges on Xenophon first published in French in 1954. The editors have also reviewed and corrected the translation of Xenophon, and re-translated Kojève's review.The Strauss-Kojève exchange raises several fundamental questions: the relationship between political philosophy and underlying assumptions about time and history ; the nature of our independence from, and dependence on, others in any satisfaction of desire; and the right way to understand the distinctive character of modern, as opposed to classical, political life and thought. I attempt to asses their respective positions on these and other issues, and argue that the nature of the debate between them is seriously and problematically constrained by the way Kojève's reading of Hegel frames much of the discussion. (shrink)

Leo Strauss is known to many people as a thinker of the right, who inspired hawkish views on national security and perhaps even advocated war without limits. Moving beyond gossip and innuendo about Strauss's followers and the Bush administration, this book provides the first comprehensive analysis of Strauss's writings on political violence, considering also what he taught in the classroom on this subject. In stark contrast to popular perception, Strauss emerges as a man of peace, favorably disposed to international law (...) and skeptical of imperialism - a critic of radical ideologies (right and left) who warns of the dangers to free thought and civil society when philosophers and intellectuals ally themselves with movements that advocate violence. Robert Howse provides new readings of Strauss's confrontation with fascist/Nazi jurist Carl Schmitt, his debate with Alexandre Kojève about philosophy and tyranny, and his works on Machiavelli and Thucydides and examines Strauss's lectures on Kant's Perpetual Peace and Grotius's Rights of War and Peace. (shrink)

L’auteur du De Intellectu connaît le De Anima d’Alexandre d’Aphrodise et il offre une interprétation néoplatonicienne de ce texte dans sa considération de la doctrine noétique d’Aristote du De Anima 3.5. Cette interprétation révèle précisément cette autonomie philosophique par opposition à un examen purement philologique des textes aristotéliciens que le présent volume explore. Le De Intellectu, en raison de son caractère néoplatonicien, doit dater de quelque deux à quatre siècles après Alexandre. Il ne contient aucune référence à un (...) Aristote de Mytilène, maître d’Alexandre, contrairement à ce qui a été suggéré. (shrink)

Alexandre Koj_ve offers a systematic discussion of key themes such as right, justice, law, equality, and autonomy in which he presages our contemporary world of economic globalization and international law. Edited and translated by Bryan-Paul Frost, this is the authoritative English language edition of a monumental work in political philosophy.

Tout au long des années trente, un groupe de jeunes intellectuels non conformistes réunis dans le mouvement " Ordre Nouveau " ont lancé dans le débat une pensée radicalement nouvelle en rupture avec les idées dominantes du collectivisme conquérant et du capitalisme traditionnel. Ils avaient nom Denis de Rougemont, Robert Aron, Arnaud Dandieu, Daniel-Rops, Emmanuel Mounier. Alexandre Marc, philosophe jeté hors de sa Russie natale par la victoire des bolcheviques, était leur fédérateur et animateur principal.0De ces idées, il fit (...) une doctrine, le fédéralisme personnaliste, à l'approfondissement et à la diffusion de laquelle il consacra toute sa vie. On pourrait la croire aujourd'hui oubliée. Et pourtant, c'est en elle qu'ont germé des réalisations et des propositions, révolutionnaires en ces temps et très présentes dans les débats actuels : fédéralisme européen, crise de civilisation, allocation universelle, subsidiarité et régionalisme, etc.0Il en est jusqu'à la pensée dialectique du " en même temps ", chère au macronisme, qui apparaît comme une transposition hasardeuse de la dialectique inclusive, théorisée par Alexandre Marc. Sa disparition, voilà vingt ans, appelle une évaluation de cette doctrine et une tentative d'appréciation critique de sa pertinence. Ce livre s'efforce d'illustrer cette ambition au travers des réflexions des auteurs sur certains de ses aspects névralgiques comme le personnalisme, la crise, la dialectique ou l'action politique.0Certains ont été des élèves et des proches collaborateurs d'Alexandre Marc ; d'autres ne l'ont connu qu'au travers de ses écrits ou de ses conférences. Tous se reconnaissent dans le personnalisme, fondement de cette doctrine méconnue et pourtant, étonnamment actuelle. (shrink)

This paper explores the relationship between eugenics, disability, and dehumanization, with a focus on forms of eugenics beyond Nazi eugenics.

Doing Greek Philosophy conveys a vivid sense of dynamism and continuity of the Greek philosophical tradition and illustrates how interaction between Greek philosophers creates and sustains that tradition. It concentrates on a set of inter-related challenges and problems that emerged early in the tradition and moves on to the subsequent reactions to them.

The impressive variation amongst biological individuals generates many complexities in addressing the simple-sounding question what is a biological individual? A distinction between evolutionary and physiological individuals is useful in thinking about biological individuals, as is attention to the kinds of groups, such as superorganisms and species, that have sometimes been thought of as biological individuals. More fully understanding the conceptual space that biological individuals occupy also involves considering a range of other concepts, such as life, reproduction, and agency. There has (...) been a focus in some recent discussions by both philosophers and biologists on how evolutionary individuals are created and regulated, as well as continuing work on the evolution of individuality. (shrink)

Der Wandel der kulturellen Verhältnisse führt zu einer Zuspitzung des Verhältnisses von Gesellschaft und Rechtssystem. In diesem Prozess gestaltet New Political Ecology (NPE) Umwelt und Rechtssystem und ist zugleich evolutiv ausgerichtet. NPE erfährt Evolution in der Zeit als Überfluss und in eigenartiger Vernetzung als knappes Gut. Diese Verbindung basiert auf Zusammenhängen, die bisher noch nicht systematisch bearbeitet worden sind. Dabei geht es ganz wesentlich auch um das Verhältnis von Staat und moderner Risikogesellschaft. Wissenschaftlicher Fortschritt erweist sich vor diesem Hintergrund selbst (...) als ein evolutiver Prozess. (shrink)

Drawing on a passage from Ramsey's Truth and Probability, we formulate a simple, plausible constraint on evaluating the accuracy of credences: the Calibration Test. We show that any additive, continuous accuracy measure that passes the Calibration Test will be strictly proper. Strictly proper accuracy measures are known to support the touchstone results of accuracy-first epistemology, for example vindications of probabilism and conditionalization. We show that our use of Calibration is an improvement on previous such appeals by showing how it answers (...) or sidesteps problems that have been raised for previous work in this area. (shrink)

. Computational chemistry grew in a new era of “desktop modeling,” which coincided with a growing demand for modeling software, especially from the pharmaceutical industry. Parameterization of models in computational chemistry is an arduous enterprise, and we argue that this activity leads, in this specific context, to tensions among scientists regarding the epistemic opacity transparency of parameterized methods and the software implementing them. We relate one flame war from the Computational Chemistry mailing List in order to assess in detail the (...) relationships between modeling methods, parameterization, software and the various forms of their enclosure or disclosure. Our claim is that parameterization issues are an important and often neglected source of epistemic opacity and that this opacity is entangled in methods and software alike. Models and software must be addressed together to understand the epistemological tensions at stake. (shrink)

In a previous article on cosmological arguments, I have put forward a few examples of complete infinite and circular explanations, and argued that complete non-wellfounded explanations such as these might explain the present state of the world better than their well-founded theistic counterparts (Billon, 2021). Although my aim was broader, the examples I gave there implied merely causal explanations. In this article, I would like to do three things: • Specify some general informative conditions for complete and incomplete non-wellfounded causal (...) explanations that can be used to assess candidate explanations and to generate new examples of complete non-wellfounded explanations. • Show that these conditions, which concern chains of causal explanations, easily generalize to chains of metaphysical, grounding explanations and even to chains involving other “determination relations” such as supervenience. • Apply these general conditions to the recent debates against the existence of nonwellfounded chains of grounds and show, with a couple of precise examples, that the latter can be complete, and that just like in the case of causal explanations, non-wellfoundedness can in fact be an aset rather than a liability. (shrink)

Die Meisterwerke der Moralistik haben Millionen von Menschen als philosophische Lebensbegleiter gedient. Doch worum geht es in der Moralistik eigentlich? 0Die Moralistik befasst sich mit der Natur des Menschen und mit Möglichkeiten kluger, individueller Selbstbehauptung. Sie führt die antiken Ansätze einer philosophischen Klugheitslehre fort und besetzt damit einen in der neuzeitlichen Ethik vernachlässigten Teil der praktischen Philosophie. Ihre Meisterwerke vermitteln uns Menschenkenntnis und soziale Orientierung und stehen uns auf dem Weg eines gelingenden Lebens beratend zur Seite. In ihnen liegt der (...) Ursprung der modernen Philosophie der Lebenskunst. Das Buch stellt sowohl die Entwicklung der Moralistik als auch ihr philosophisches Anliegen anschaulich und gut lesbar dar. (shrink)

The paper offers an analysis of Protagoras’ fr. DK 80 B 1 and rejects the traditional reading of Protagoras as relativist. By considering the ipsissima verba that Protagoras makes use of in his passage, it is argued that alternative interpretations are possible, of which epistemological reism and psychological individualism are proposed. On a more general level, it is discussed to what extent Protagoras’ fragment contains descriptive rather than normative claim.

Initiated by Robert Wesson, _Evolution and Human Values_ is a collection of newly written essays designed to bring interdisciplinary insight to that area of thought where human evolution intersects with human values. The disciplines brought to bear on the subject are diverse - philosophy, psychiatry, behavioral science, biology, anthropology, psychology, biochemistry, and sociology. Yet, as organized by co-editor Patricia A. Williams, the volume falls coherently into three related sections. Entitled Evolutionary Ethics, the first section brings contemporary research to an area (...) first explored by Herbert Spencer. Evolutionary ethics looks to the theory of evolution by natural selection to find values for human living. The second section, Evolved Ethics, discusses the evolution of language and religion and their impact on moral thought and feeling. Evolved ethics was partly Charles Darwin's subject in _The Descent of Man._ The last section bears the title Scientific Ethics. A nascent field, scientific ethics asks about the evolution of human nature and the implications of that nature for ethical theory and social policy. Together, the essays collected here provide important contemporary insights into what it is - and what it may be - to be human. (shrink)

This paper offers an overview of "the species problem", arguing for a view of species as homeostatic property cluster kinds, positioning the resulting form of realism about species as an alternative to the claim that species are individuals and pluralistic views of species. It draws on taxonomic practice in the neurosciences, especially of neural crest cells and retinal ganglion cells, to motivate both the rejection of the species-as-individuals thesis and species pluralism.

Patients suffering from depersonalization complain of feeling detached from their body, their mental states, and actions or even from themselves. In this chapter, I argue that depersonalization consists in the lack of a phenomenal feature that marks my experiences as mine, which is usually called “mineness,” and that the study of depersonalization constitutes a neglected yet incomparable probe to assess empirically the scope, role, and even the nature of mineness. Here is how I will proceed. After describing depersonalization (§2) and (...) arguing that it involves a lack of mineness (§3) I will confront a series of objections (§4). I will then spell out what depersonalization can teach us about the scope of mineness (§5), about its role and psychological function (§6) and even about its nature (§7). (shrink)

In the good old days, when general philosophy of science ruled the Earth, a simple division was often invoked to talk about philosophical issues specific to particular kinds of science: that between the natural sciences and the social sciences. Over the last 20 years, philosophical studies shaped around this dichotomy have given way to those organized by more fine-grained categories, corresponding to specific disciplines, as the literatures on the philosophy of physics, biology, economics and psychology--to take the most prominent four (...) examples--have blossomed. In general terms, work in each of these areas has become increasingly enmeshed with that in the corresponding science itself, increasingly naturalistic (in at least one sense of that term), and in my view, increasingly interesting. (shrink)

According to what we will call subjectivity theories of consciousness, there is a constitutive connection between phenomenal consciousness and subjectivity: there is something it is like for a subject to have mental state M only if M is characterized by a certain mine-ness or for-me-ness. Such theories appear to face certain psychopathological counterexamples: patients appear to report conscious experiences that lack this subjective element. A subsidiary goal of this chapter is to articulate with greater precision both subjectivity theories and the (...) psychopathological challenge they face. The chapter’s central goal is to present two new approaches to defending subjectivity theories in the face of this challenge. What distinguishes these two approaches is that they go to great lengths to interpret patients’ reports at face value – greater length, at any rate, than more widespread approaches in the extant literature. (shrink)