evidence: Aristotle is a towering figure in ancient Greek philosophy, who made important contributions to logic, criticism, rhetoric, physics, biology, psychology, mathematics, metaphysics, ethics, and politics. He was a student of Plato for twenty years but is famous for rejecting Plato’s theory of forms. He was more empirically minded than both Plato and Plato’s teacher, Socrates. [...] Aristotle was the founder of the Lyceum, a school based in Athens, Greece; and he was the first of the Peripatetics, his followers from the Lyceum. Aristotle’s works, exerted tremendous influence on ancient and medieval thought and continue to inspire philosophers to this day. [...] Though our main ancient source on Aristotle’s life, Diogenes Laertius, is of questionable reliability, the outlines of his biography are credible. Diogenes reports that Aristotle’s Greek father, Nicomachus, served as private physician to the Macedonian king Amyntas (DL 5.1.1). At the age of seventeen, Aristotle migrated to Athens where he joined the Academy, studying under Plato for twenty years (DL 5.1.9). During this period Aristotle acquired his encyclopedic knowledge of the philosophical tradition, which he draws on extensively in his works.