Aristotle (384 BCE - March 7, 322 BCE) was an ancient Greek
philosopher, a student of Plato and teacher of Alexander the
Great. He wrote on diverse subjects, including physics, poetry,
biology and zoology, logic, rhetoric, politics and government,
and ethics. Along with Socrates and Plato, Aristotle was one of
the most influential of ancient Greek philosophers. They
transformed Presocratic Greek philosophy into the foundations of
Western philosophy as we know it. Some consider Plato and
Aristotle to have founded two of the most important schools of
Ancient philosophy; others consider Aristotelianism as a
development and concretization of Plato's insights.