Perception is less of a recording system and more of a protection system against external stimuli.

When inspiration does not come to me, I go halfway to meet it.

I was making frequent use of cocaine at that time ... I had been the first to recommend the use of cocaine, in 1885, and this recommendation had brought serious reproaches down on me.

It often seems that the poet's derisive comment is not unjustified when he says of the philosopher: “With his nightcaps and the tatters of his dressing-gown he patches the gaps in the structure of the universe.

When making a decision of minor importance, I have always found it advantageous to consider all the pros and cons. In vital matters, however, such as the choice of a mate or a profession, the decision should come from the unconscious, from somewhere within ourselves. In the important decisions of personal life, we should be governed, I think, by the deep inner needs of our nature.

The virtuous man contents himself with dreaming that which the wicked man does in actual life.

I prefer the company of animals more than the company of humans. Certainly, a wild animal is cruel. But to be merciless is the privilege of civilized humans.