It is the mark of an educated mind to be able to entertain a thought without accepting it.

Aristotle (385–322 BCE) was a Greek philosopher who lived in Ancient Greece during the Classical period. He was a student of Plato and was the founder of the Lyceum school of philosophy and the Aristotelian tradition. His teachings cover many subjects including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theatre, music, rhetoric, psychology, linguistics, economics, politics, and government.