Socrates lives for us in the works'of Plato as the loftiest expression of the spiritual life of ancient Greece. Plato, a philosopher with the mind of a poet, was able to feel and to share the aspirations of his teacher, and gave in dialogues a half dramatic expression of the personality and of the doctrines of the man who wrote no book himself, but whose best wisdom is enshrined in the works of two great writers-who drew strength from his friendship — Xenophon and Plato.