The psychologist must avoid all metaphysical assumptions.

The mind is not a passive mirror of the world but an active participant in constructing reality.

Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.

神话是历史选择的一种言语：它不可能从事物的“本质”中演化出来。