4th-century BCE Classical Greek philosopher and polymath
Aristotle (Ἀριστοτέλης Aristotelēs; 384 BC – 322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the teacher of Theophrastus and founder of the Lyceum, the Peripatetic school of philosophy, and the Aristotelian tradition. His writings cover many subjects including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theatre, music, rhetoric, psychology, linguistics, economics, politics, meteorology, geology and government. Aristotle provided a complex synthesis of the various philosophies existing prior to him. It was above all from his teachings that the West inherited its intellectual lexicon, as well as problems and methods of inquiry. As a result, his philosophy has exerted a unique influence on almost every form of knowledge in the West and it continues to be a subject of contemporary philosophical discussion.
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Perhaps then we must begin with such facts as are known to us from individual experience. It is necessary therefore that the person who is to study, with any tolerable chance of profit, the principles of nobleness and justice and politics generally, should have received a good moral training. (Bk I, Ch II)
Hence it is evident that the state is a creation of nature, and that man is by nature a political animal. And he who by nature and not by mere accident is without a state, is either a bad man or above humanity; he is like the Tribeless, lawless, hearthless one, whom Homer denounces — the natural outcast is forthwith a lover of war; he may be compared to an isolated piece at draughts.