Quotation:

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Robert M. Hutchins quotes (American Educator and Writer, active in forming the Committee to Frame a World Constitution (1945), led the Commission on Freedom of the Press (1946), and vigorously defended academic freedom, opposing faculty loyalty oaths in the 1950s. 1899-1977)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)

 Aristotle quotes (Ancient Greek Philosopher, Scientist and Physician, 384 BC-322 BC)