Philosophy ... is a science, and as such has no articles of faith; accordingly, in it nothing can be assumed as existing except what is either positively given empirically, or demonstrated through indubitable conclusions.

I owe what is best in my own development to the impression made by Kant's works, the sacred writings of the Hindus, and Plato.

Just as the largest library, badly arranged, is not so useful as a very moderate one that is well arranged, so the greatest amount of knowledge, if not elaborated by our own thoughts, is worth much less than a far smaller volume that has been abundantly and repeatedly thought over.

To forgive and forget means to throw away dearly bought experience.

Intellect is invisible to the man who has none.

Shame on such a morality that is worthy of pariahs, and that fails to recognize the eternal essence that exists in every living thing, and shines forth with inscrutable significance from all eyes that see the sun!

...this our world, which is so real, with all its suns and milky ways is-nothing.