Originally published in 1942, this book examines Plato's later dialogues, particularly Timaeus, in terms of their dependence on pre-Socratic philosophy and other aspects of ancient thought and life. Skemp assesses Plato's views on reality and how it could be more than his idealized Forms. This book will be of value to anyone with an interest in the Socratic and Platonic philosophies and the circumstances of their development.