We can never really be prepared for that which is wholly new. We have to adjust ourselves, and every radical adjustment is a crisis in self-esteem: we undergo a test, we have to prove ourselves. It needs subordinate self-confidence to face drastic change without inner trembling.

A mass movement attracts and holds a following not because it can satisfy the desire for self-advancement, but because it can satisfy the passion for self-renunciation.

The creative mind is the playful mind. Philosophy is the play and dance of ideas.

Intolerance is the ''Do Not Touch'' sign on something that cannot bear touching. We do not mind having our hair ruffled, but we will not tolerate any familiarity with the toupee which covers our baldness.

How frighteningly few are the persons whose death would spoil our appetite and make the world seem empty.

The purpose of philosophers is to show people what is right under their noses.

To change everything, simply change your attitude.