Any book, which is at all important, should be reread immediately

Life swings like a pendulum backward and forward between pain and boredom.

Hatred is an affair of the heart; contempt that of the head.

Each day is a little life: every waking and rising a little birth, every fresh morning a little youth, every going to rest and sleep a little death.

A man may call to mind the face of his friend, but not his own. Here, then, is an initial difficulty in the way of applying the maxim, Know Thyself.

The animal lacks both anxiety and hope because its consciousness is restricted to what is clearly evident and thus to the present moment: the animal is the present incarnate.

Talent hits a target no one else can hit; Genius hits a target no one else can see.