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Hypatia (ca. AD 350–370–March 415) Greek Neoplatonist philosopher in Roman Egypt and the first notable woman in mathematics. As head of the Platonist school at Alexandria, she also taught philosophy and astronomy. She was eventually murdered by a Christian mob which accused her of causing religious turmoil.

Leszek Kolakowski/Philosopher His essay Theses on Hope and Hopelessness, suggested that self-organized social groups could gradually expand the spheres of civil society in a totalitarian state His work was banned by the state in the 1970s. Important thinker

Heraclitus (540 BCE-480 BCE.)

(Avram) Noam Chomsky December 7, 1928; American linguist, philosopher, cognitive scientist, logician, historian, political critic, and activist.