It is sad but unfortunately true that man learns nothing from history.

Whether you call the principle of existence "God," "matter," "energy," or anything else you like, you have created nothing; you have merely changed a symbol. Eastern and Western Thinking, 1938

Active imagination requires a state of reverie, half-way between sleep and waking.

Everything good is costly, and the development of personality is one of the most costly of all things. It is a matter of saying yes to oneself, of taking oneself as the most serious of tasks, of being conscious of everything one does, and keeping it constantly before one's eyes in all its dubious aspects.

No one can flatter himself that he is immune to the spirit of his own epoch, or even that he possesses a full understanding of it. Irrespective of our conscious convictions, each one of us, without exception, being a particle of the general mass, is somewhere attached to, colored by, or even undermined by the spirit which goes through the mass. Freedom stretches only as far as the limits of our consciousness.

The meaning and design of a problem seem not to lie in its solution, but in our working at it incessantly.

Neurosis is an inner cleavage-the state of being at war with oneself.