Epistemic Circularity An epistemically circular argument defends the reliability of a source of belief by relying on premises that are themselves based on the source. It is a widely shared intuition that there is something wrong with epistemically circular arguments. William Alston, who first used the term in this sense, argues plausibly that there is no way to know or to be justified in believing

Ernst Cassirer (1874-1945) Ernst Cassirer was the most prominent, and the last, Neo-Kantian philosopher of the twentieth century. His major philosophical contribution was the transformation of his teacher Hermann Cohen’s mathematical-logical adaptation of Kant’s transcendental idealism into a comprehensive philosophy of symbolic forms intended to address all aspects of human cultural life and creativity. In doing so, Cassirer paid equal attention to both sides of

Epicurus (341—271 B.C.E.) Epicurus is one of the major philosophers in the Hellenistic period, the three centuries following the death of Alexander the Great in 323 B.C.E. (and of Aristotle in 322 B.C.E.). Epicurus developed an unsparingly materialistic metaphysics, empiricist epistemology, and hedonistic ethics. Epicurus taught that the basic constituents of the world are atoms, uncuttable bits of matter, flying through empty space, and he

Justus Lipsius (1547—1606) Justus Lipsius, a Belgian classical philologist and Humanist, wrote a series of works designed to revive ancient Stoicism in a form that would be compatible with Christianity. The most famous of these is De Constantia (‘On Constancy’) in which he advocated a Stoic-inspired ideal of constancy in the face of unpleasant external events, but also carefully distinguished those parts of Stoic philosophy

Diogenes of Sinope (c. 404—323 B.C.E.) The most illustrious of the Cynic philosophers, Diogenes of Sinope serves as the template for the Cynic sage in antiquity. An alleged student of Antisthenes, Diogenes maintains his teacher’s asceticism and emphasis on ethics, but brings to these philosophical positions a dynamism and sense of humor unrivaled in the history of philosophy. Though originally from Sinope, the majority of