The goal towards which the pleasure principle impels us - of becoming happy - is not attainable: yet we may not - nay, cannot - give up the efforts to come nearer to realization of it by some means or other.
The interpretation of dreams is the royal road to a knowledge of the unconscious activities of the mind.
Being entirely honest with oneself is a good exercise.
The psychical, whatever its nature may be, is itself unconscious.
What we call happiness in the strictest sense comes from the (preferably sudden) satisfaction of needs which have been dammed up to a high degree.
The first requisite of civilization is that of justice.
