Attaining consciousness is connected with the gradual liberation from mechanicalness, for man is fully and completely under mechanical laws.

There is no possibility of remembering what has been found and understood, and later repeating it to oneself. It disappears as a dream disappears. Perhaps it is all nothing but a dream.

In all living nature (and perhaps also in that which we consider as dead) love is the motive force which drives the creative activity in the most diverse directions.

It is only when we realize that life is taking us nowhere that it begins to have meaning.

The most difficult thing is to know what we do know, and what we do not know.

Can one alter one´s chief feature?" asked someone else. First it is necessary to know it. If you know it, much will depend on the quality of your knowing. If you know it well, then it is possible to change it.

Psychology is sometimes called a new science. This is quite wrong. Psychology is, perhaps, the oldest science, and, unfortunately, in its most essential features a forgotten science.