What were Plato, Aristotle, and Socrates known for in the field of philosophy?

Plato, Aristotle, and Socrates were ancient Greek philosophers known for their contributions to the field of philosophy. Plato is known for his theory of forms and his work on ethics and politics. Aristotle is known for his logic, metaphysics, and ethics. Socrates is known for his method of questioning and his influence on Western philosophy.