He who fights with monsters might take care lest he thereby become a monster. Is not life a hundred times too short for us to bore ourselves?

Let us beware of saying that death is the opposite of life. The living being is only a species of the dead, and a very rare species.

Let your love to life be love to your highest hope; and let your highest hope be the highest thought of life!

Nothing can be done about it: every master has but a single pupil--and he will not stay loyal to him--for he is also destined to become a master.

When a woman has scholarly inclinations there is usually something wrong with her sexuality.

Respectability offends my taste.

The truth is ugly: we have art so as not to perish from the truth.