1. Aristotle was a Greek philosopher born in 384 BC who studied under Plato and taught Alexander the Great. He believed the world was structured in a way that made rational understanding possible through observation and reasoned inquiry.
2. Aristotle viewed nature as consisting of individual species with fixed essences that developed through regular biological processes like birth, growth, and decay rather than creation or revolution. He identified material, formal, efficient, and final causes to explain natural phenomena.
3. Aristotle made influential contributions to logic, metaphysics, ethics, psychology, and other fields. His works were enormously influential in both medieval scholasticism and modern thought. He is considered one of the most important philosophers of all time.