I do not think our successes can compete with those of Lourdes. There are so many more people who believe in the miracles of the Blessed Virgin than in the existence of the unconscious.

It is easy to see that the ego is that part of the id which has been modified by the direct influence of the external world.

Religion originates in the child's and young mankind's fears and need for help. It cannot be otherwise.

A woman should soften but not weaken a man.

Humanity is in the highest degree irrational, so that there is no prospect of influencing it by reasonable arguments. Against prejudice one can do nothing.

The reproaches against science for not having yet solved the problems of the universe are exaggerated in an unjust and malicious manner; it has truly not had time enough yet for these great achievements. Science is very young--a human activity which developed late.

Illusions commend themselves to us because they save us pain and allow us to enjoy pleasure instead.