There is nothing more frightful than for a teacher to know only what his scholars are intended to know.

Passions are vices or virtues to their highest powers.

One should not search for anything behind the phenomena. They themselves are the message.

Is it not enough that we cannot make one another happy, must we also rob one another of the pleasures that any heart may permit itself now and then? And name me a person who in a bad mood will be decent enough to hide it, to bear it alone, without destroying the joy around him. Is it not rather an inner dissatisfaction with our own unworthiness, a dislike of ourselves that is always associated with envy aggravated by foolish conceit? We see people happy and not made happy by us, and that is unbearable.

Let everyone sweep in front of his own door, and the whole world will be clean.

Man cannot persist long in a conscious state, he must throw himself back into the unconscious, for his root lives there.

Writing is busy idleness.