Only fools repeat the same things over and over, expecting to obtain different results.

This is the true joy of life-the being used for a purpose recognized by yourself as a mighty one, the being thoroughly worn out before you are thrown to the scrap-heap; the being a force of nature instead of a feverish, selfish clod of ailments and grievances.

Medical science is as yet very imperfectly differentiated from common cure-mongering witchcraft

Music is the brandy of the damned.

We want a few mad people now. See where the sane ones have landed us!

In the right key one can say anything. In the wrong key, nothing: the only delicate part is the establishment of the key.

The reasonable man adapts himself to the world; the unreasonable one persists to adapt the world to himself. Therefore all progress depends on the unreasonable man.