was a Greek philosopher and was born in 348 B.C. He studied under another philopsopher Plato and later tutored Alexander the Great at the Macedonian court. In 335 B.C. he opened a school in the Athenian Lyceum. During the anti-macedonian agitation after Alexander's death fled to Chalcis where he later died in 322 B.C. His extant writings, largely in the form of lecture notes made by his students, include the Organum (treatises of logic); Physics; Metaphysics; De Anima (on the soul); Nicomachean Ethics and Eudemian Ethics; Politics: De Poet ....