text: Aristotle (; Aristotélēs, ; 384–322 BC) was an Ancient Greek philosopher and polymath.His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology and the arts.As the founder of the Peripatetic school of philosophy in the Lyceum in Athens, he began the wider Aristotelian tradition that followed, which set the groundwork for the development of modern science.Little is known about Aristotle's life.He was born in the city of Stagira in northern Greece during the Classical period.His father, Nicomachus, died when Aristotle was a child, and he was brought up by a guardian.At 17 or 18 he joined Plato's Academy in Athens and remained there till the age of 37 ().Shortly after Plato died, Aristotle left Athens and, at the request of Philip II of Macedon, tutored his son Alexander the Great beginning in 343 BC.He established a library in the Lyceum which helped him to produce many of his hundreds of books on papyrus scrolls.Though Aristotle wrote many elegant treatises and dialogues for publication, only around a third of his original output has survived, none of it intended for publication.Aristotle provided a complex synthesis of the various philosophies existing prior to him.His teachings and methods of inquiry have had a significant global impact, and as a result, his philosophy has exerted an influence across the world and it continues to be a subject of contemporary philosophical discussion.Aristotle's views profoundly shaped medieval scholarship.The influence of his physical science extended from late antiquity and the Early Middle Ages into the Renaissance, and was not replaced systematically until the Enlightenment and theories such as classical mechanics were developed.Some of Aristotle's zoological observations found in his biology, such as on the hectocotyl (reproductive) arm of the octopus, were disbelieved until the 19th century.