An aphorism ought to be entirely isolated from the surrounding world like a little work of art and complete in itself like a hedgehog.

Mathematics is, as it were, a sensuous logic, and relates to philosophy as do the arts, music, and plastic art to poetry.

Form your life humanly, and you have done enough: but you will never reach the height of art and the depth of science without something divine.

Beauty is that which is simultaneously attractive and sublime.

Versatility of education can be found in our best poetry, but the depth of mankind should be found in the philosopher.