A suspicious mind.

Sextus Empiricus (ca. AD 160–210), exponent of scepticism and critic of the Dogmatists, was a Greek physician and philosopher, pupil and successor of the medical sceptic Herodotus (not the historian) of Tarsus. He probably lived for years in Rome and possibly also in Alexandria and Athens. His three surviving works are Outlines of Pyrrhonism (three books on the practical and ethical scepticism of Pyrrho of Elis, ca. 360–275 BC, as developed later, presenting also a case against the Dogmatists); Against the Dogmatists (five books dealing with the Logicians, the Physicists, and the Ethicists); and Against the Professors (six books: Grammarians, Rhetors, Geometers, Arithmeticians, Astrologers, and Musicians). These two latter works might be called a general criticism of professors of all arts and sciences. Sextus’ work is a valuable source for the history of thought especially because of his development and formulation of former sceptic doctrines.

The Loeb Classical Library edition of Sextus Empiricus is in four volumes.

A suspicious mind.

Sextus Empiricus (ca. AD 160–210), exponent of scepticism and critic of the Dogmatists, was a Greek physician and philosopher, pupil and successor of the medical sceptic Herodotus (not the historian) of Tarsus. He probably lived for years in Rome and possibly also in Alexandria and Athens. His three surviving works are Outlines of Pyrrhonism (three books on the practical and ethical scepticism of Pyrrho of Elis, ca. 360–275 BC, as developed later, presenting also a case against the Dogmatists); Against the Dogmatists (five books dealing with the Logicians, the Physicists, and the Ethicists); and Against the Professors (six books: Grammarians, Rhetors, Geometers, Arithmeticians, Astrologers, and Musicians). These two latter works might be called a general criticism of professors of all arts and sciences. Sextus’ work is a valuable source for the history of thought especially because of his development and formulation of former sceptic doctrines.

The Loeb Classical Library edition of Sextus Empiricus is in four volumes.

Interest in German Idealism--not just Kant, but Fichte and Hegel as well--has recently developed within analytic philosophy, which traditionally defined itself in opposition to the Idealist tradition. Yet one obstacle remains especially intractable: the Idealists' longstanding claim that philosophy must be systematic. In this work, the first overview of the German Idealism that is both conceptual and methodological, Paul W. Franks offers a philosophical reconstruction that is true to the movement's own times and resources and, at the same time, deeply relevant to contemporary thought.

At the center of the book are some neglected but critical questions about German Idealism: Why do Fichte, Schelling, and Hegel think that philosophy's main task is the construction of a system? Why do they think that every part of this system must derive from a single, immanent and absolute principle? Why, in short, must it be all or nothing? Through close examination of the major Idealists as well as the overlooked figures who influenced their reading of Kant, Franks explores the common ground and divergences between the philosophical problems that motivated Kant and those that, in turn, motivated the Idealists. The result is a characterization of German Idealism that reveals its sources as well as its pertinence--and its challenge--to contemporary philosophical naturalism.

It’s no secret that animals are considered objects in the fields of law, commerce, and science, characterized as property and commodities. Animals, Mind, and Matter: The Inside Story challenges this ascription and establishes that animals are living subjects, who have minds and opinions of their own and care about what happens to them. Donovan contends that animals’ voices or standpoints should be part of any human decisions concerning their ethical treatment. Elaborating on feminist care theory and critical animal standpoint theory, the author provides compelling evidence for animal subjectivity, exploring in the process the nature of subjectivity and consciousness while drawing from recent developments in quantum and emergence theories that point away from the dominant ontology of Cartesian objectivism. Through these explorations, Donovan proposes that a new narrative is emerging in the arts and sciences—an inside story that re-subjectifies natural life and leaves behind the deadening Midas touch of Cartesian objectivism.

“Learned ignorance,” the recognition that God is beyond us and our knowing capacities is the theological concept for which Nicholas of Cusa is most famous. Despite God’s apparent absence Nicholas offers original ways to think about God that would unite his presence with his absence. He called these proposals “conjectures” (coniecturae). Conjecture and conjecturing are central to the methodology of Nicholas’s philosophical theology and to his thinking about human knowledge. By using concrete examples from the everyday life of his times as symbolic imagery Nicholas makes what we say about God imaginatively available and theoretically plausible. He called such conjectural symbols “aenigmata” (= “symbolic or ‘enigmatic’ conjectures”) because they partially clarify and likewise point to an exact truth that is beyond us. Novel and imaginative, Nicholas’s conjectural examples break with the traditional medieval Aristotelian examples and provide further evidence of his role as a figure bridging medieval and Renaissance thought. Following his earlier book, Reading Cusanus (The Catholic University of America Press, 2003), Clyde Lee Miller here examines and comments on the meaning of “conjecture” in Nicholas of Cusa. The Art of Conjecture: Nicholas of Cusa on Knowledge explores what Nicholas meant by conjecture and its import as demonstrated in his treatises and sermons. Beginning with Nicholas’ On Conjectures, Miller analyzes a series of conjectural symbols and proposals across Nicholas’s less frequently discussed texts and recently published sermons. This early Renaissance thinker offers an original and ground-breaking way of framing speculation in philosophical theology and more generally in philosophy itself.

Aspects of Psychologism is a penetrating look into fundamental philosophical questions of consciousness, perception, and the experience we have of our mental lives. Psychologism, in Tim Crane's formulation, presents the mind as a single subject-matter to be investigated not only empirically and conceptually but also phenomenologically: through the systematic examination of consciousness and thought from the subject's point of view.

How should we think about the mind? Analytical philosophy tends to address this question by examining the language we use to talk about our minds, and thus translates our knowledge of mind and consciousness into knowledge of the concepts which this language embodies. Psychologism rejects this approach. The philosophy of mind, Crane believes, has become too narrow in its purely conceptual focus on the logical and linguistic formulas that structure thought. We cannot assume that the categories needed to understand the mind correspond absolutely with such semantic categories. A central claim of Crane's psychologism is that intentionality--the "aboutness" or "directedness" of the mind--is essential to all mental phenomena. In addition, Crane responds to proponents of materialist doctrines about consciousness and defends the claim that perception can represent the world in a non-conceptual, non-propositional way.

Philosophers must take more seriously the findings of psychology and phenomenology, Crane contends. An investigation of mental phenomena from this broader viewpoint opens up philosophy to a more realistic and plausible account of the mind's nature.

The first history of postwar mathematics, offering a new interpretation of the rise of abstraction and axiomatics in the twentieth century.

Why did abstraction dominate American art, social science, and natural science in the mid-twentieth century? Why, despite opposition, did abstraction and theoretical knowledge flourish across a diverse set of intellectual pursuits during the Cold War? In recovering the centrality of abstraction across a range of modernist projects in the United States, Alma Steingart brings mathematics back into the conversation about midcentury American intellectual thought. The expansion of mathematics in the aftermath of World War II, she demonstrates, was characterized by two opposing tendencies: research in pure mathematics became increasingly abstract and rarified, while research in applied mathematics and mathematical applications grew in prominence as new fields like operations research and game theory brought mathematical knowledge to bear on more domains of knowledge. Both were predicated on the same abstractionist conception of mathematics and were rooted in the same approach: modern axiomatics. 

For American mathematicians, the humanities and the sciences did not compete with one another, but instead were two complementary sides of the same epistemological commitment. Steingart further reveals how this mathematical epistemology influenced the sciences and humanities, particularly the postwar social sciences. As mathematics changed, so did the meaning of mathematization. 

Axiomatics focuses on American mathematicians during a transformative time, following a series of controversies among mathematicians about the nature of mathematics as a field of study and as a body of knowledge. The ensuing debates offer a window onto the postwar development of mathematics band Cold War epistemology writ large. As Steingart’s history ably demonstrates, mathematics is the social activity in which styles of truth—here, abstraction—become synonymous with ways of knowing.