Logic

W.V.O. Quine Willard Van Orman Quine was one of the most influential analytic philosophers of the 20th century. A professor at Harvard for decades, his work revolutionised epistemology, philosophy of language, and ontology, while simultaneously dismantling the foundations of the logical positivism of the Vienna Circle. Quine is the principal link between American pragmatism (Dewey, James) and contemporary analytic philosophy. Key Concepts Critique of the Analytic/Synthetic Distinction (“Two Dogmas of Empiricism”, 1951, Philosophical Review; reprinted in From a Logical Point of View, 1953): Quine attacks two dogmas of empiricism: (1) the belief in a sharp distinction between analytic propositions (true by meaning, e.g. “all bachelors are unmarried”) and synthetic ones (true by empirical fact); and (2) reductionism (each statement has an isolated empirical content). Quine argues that the notion of “analyticity” is circular — it presupposes “synonymy”, which presupposes “analyticity”. ...

Zeno of Citium Founder of Stoicism. He taught at the Stoa Poikilê (Painted Porch) in Athens — hence the name of the school. After hearing the story of Socrates through the cynicism of Crates, he abandoned commerce to dedicate himself to philosophy. He taught that virtue is the only real good; everything else (wealth, health, fame) is indifferent (adiaphora). The universe is permeated by the divine Logos (rational fire) and each event occurs by rational necessity. ...

Zeno of Elea Born in Elea, in southern Italy, and active in the mid-fifth century BCE, Zeno was the most celebrated disciple of Parmenides — according to Plato, he accompanied his master to Athens, where the two are said to have conversed with the young Socrates. Tradition also attributes to him a heroic end: tortured by a tyrant whose overthrow he was plotting, he is said to have preferred death to betrayal. He is remembered above all as a master of argument. ...