One's friends are that part of the human race with which one can be human.

Repetition is the only form of permanence that Nature can achieve.

The lover knows much more about absolute good and universal beauty than any logician or theologian, unless the latter, too, be lovers in disguise.

Unmitigated seriousness is always out of place in human affairs.

The line between what is known scientifically and what has to be assumed in order to support knowledge is impossible to draw. Memory itself is an internal rumour.

Philosophy may describe unreasoning, as it may describe force; it cannot hope to refute them.

Nothing can be lower or more wholly instrumental than the substance and cause of all things.