My evenings are taken up very largely with astrology. I make horoscopic calculations in order to find a clue to the core of psychological truth.

It is really the mistake of our age. We think it is enough to discover new things, but we don't realize that knowing more demands a cor­responding development of morality.

Criticism can be effective when there is something that must be destroyed or dissolved, but it is capable only of harm when there is something to be built.

Error is just as important a condition of life's progress as truth

Find out what a person fears most and that is where he will develop next.

The unconscious is not just evil by nature, it is also the source of the highest good: not only dark but also light, not only bestial, semihuman, and demonic but superhuman, spiritual, and, in the classical sense of the word, "divine."

I do not believe...I know.