St. Thomas is really a great man quite apart from his saintliness.

In the products of the unconscious we discover mandala symbols, that is, circular and quaternity figures which express wholeness, and whenever we wish to express wholeness, we employ just such figures.

You can exert no influence if you are not susceptible to influence.

Projection [of our own shadow] makes the whole world a replica of our own unknown face.

No dream symbol can be separated from the individual who dreams it, and there is no definite or straightforward interpretation of any dream.

Space flights are merely an escape, a fleeing away from oneself, because it is easier to go to Mars or to the moon than it is to penetrate one's own being.

Observance of customs and laws can very easily be a cloak for a lie so subtle that our fellow human beings are unable to detect it.