Aristotle (384–322 BC) was an ancient Greek philosopher and scientist. His writings cover many subjects – including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theater, music, rhetoric, linguistics, politics and government – and constitute the first comprehensive system of Western philosophy. He was Plato's student and Alexander the Great's tutor.
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Nor was civil society founded merely to preserve the lives of its members, but that they might live well: for otherwise a state might be composed of slaves or the animal creation... nor is it an alliance mutually to defend each other from injuries or for a commercial intercourse. But whosoever endeavors to establish wholesome laws in a state attends to the virtues and vices of each individual who composes it, from whence it is evident that the first care of him who would found a city truly deserving that name and not nominally so must be to have his citizens virtuous.