Who is Aristotle from The Story of Philosophy and what is their importance?

Aristotle is born in 384 B.C. at Stagira, a city in Macedonia and lives until 322 B.C. He is born into a medical family and prepared from birth to become the founder of science. Aristotle's father is a friend and physician to Philip the King of Macedon. There are several stories of his travels but all versions relocate him in Athens to study philosophy under Plato. Aristotle is fifty years younger than Plato. They both share a comparable mental ability. This causes conflict. The relationship of Plato and Aristotle gets worse over time. Aristotle forms a school of oratory in Athens that Hermias attends. When Hermias is made autocrat of the city-state Atarneus, he invites Aristotle to join his court. Philip King of Macedon calls Aristotle to teach Alexander, his grandson who later becomes Alexander the Great.