Who was Aristotle?
Aristotle was born in Stageira in 384 BC, son of a physician at the Macedonian court. Aged 17 he was sent to study under Plato in Athens, then in 342 was appointed tutor to Alexander at Pella. Seven years later he founded the Lyceum in Athens, where he assembled one of the world’s first great libraries. After Alexander’s death he fled from Athens to exile in Asia Minor, where he died in 323. A polymath, he wrote some 200 works on logic, metaphysics, mathematics, science, ethics, politics and aesthetics, transforming many of these fields. Only 31 remain, but his influence is almost unrivalled. His key legacy is the development of a formalised system for reasoning, without which science would not exist.