Our mania for rational explanations obviously has its roots in our fear of metaphysics, for the two were always hostile brothers. Hence, anything unexpected that approaches us from the dark realm is regarded either as coming from outside and, therefore, as real, or else as a hallucination and, therefore, not true. The idea that anything could be real or true which does not come from outside has hardly begun to dawn on contemporary man.

Nature has no use for the plea that one 'did not know'.

Learn your theories as well as you can, but put them aside when you touch the miracle of the living soul

If there is anything that we wish to change in the child, we should first examine it and see whether it is not something that could better be changed in ourselves.

Our unconscious is the key to our life's pursuits.

The collective unconscious contains the whole spiritual heritage of mankind's evolution born anew in the brain structure of every individual.

Psychological type is nothing static - it changes in the course of life.