The psychotherapist learns little or nothing from his successes. They mainly confirm him in his mistakes, while his failures, on the other hand, are priceless experiences in that they not only open up the way to a deeper truth, but force him to change his views and methods.

Science is the art of creating suitable illusions which the fool believes or argues against, but the wise man enjoys for their beauty or their ingenuity, without being blind to the fact that they are human veils and curtains concealing the abysmal darkness of the unknowable

If you want to understand the jungle, you can't be content just to sail back and forth near the shore. You've got to get into it, no matter how strange and frightening it might seem.

Everyone knows nowadays that people 'have complexes'. What is not so well known, though far more important theoretically, is that complexes can have us.

The most dangerous things in the world are immense accumulations of human beings who are manipulated by only a few heads.

We cannot change anything unless we accept it.

If only simplicity were not the most difficult of all things. It consists of watching objectively the development of any fragment of fantasy.