New ideas are not only the enemies of old ones; they also appear often in an extremely unacceptable form.

The angel personifies something new arising from the deep unconscious.

Hitler is a shy and friendly man with artistic tastes and gifts.

The heaping together of paintings by Old Masters in museums is a catastrophe; likewise, a collection of a hundred Great Brains makes one big fathead.

The greatest potential for growth and self-realisation exists in the second half of life.

Securities, certitudes and peace do not lead to discoveries.

The Shadow is a moral problem that challenges the whole ego-personality, for no one can become conscious of the shadow without considerable moral effort. To become conscious of it involves recognizing the dark aspects of the personality as present and real. This act is the essential condition for any kind of self-knowledge, and it therefore, as a rule, meets with considerable resistance. Indeed, self-knowledge as a psychotherapuetic measure frequently requires much painstaking work extending over a long period of time.