Tolstoy, Leo.
My religion. (London : Walter Scott, 1884).
http://www.gutenberg.org/ebooks/43794.
"Excepting the philosophical doctrines of the pseudo-Christian world, all the philosophical and religious doctrines of which we have knowledge--Judaism, the doctrine of Confucius, Buddhism, Brahmanism, the wisdom of the Greeks--all aim to regulate human life, and to enlighten men with regard to what they must do to improve their condition. The doctrine of Confucius teaches the perfecting of the individual; Judaism, personal fidelity to an alliance with God; Buddhism, how to escape from a life governed by animal instincts; Socrates taught the perfecting of the individual through reason; the Stoics recognized the independence of
reason as the sole basis of the true life."