No, our science is no illusion. But an illusion it would be to suppose that what science cannot give us we can get elsewhere.

It often seems that the poet's derisive comment is not unjustified when he says of the philosopher: “With his nightcaps and the tatters of his dressing-gown he patches the gaps in the structure of the universe.

The genitals themselves have not undergone the development of the rest of the human form in the direction of beauty.

Dreams are the royal road to the unconscious.

In every age immorality has found no less support in religion than morality has. If the achievements of religion in respect to man's happiness, susceptibility to culture and moral control are no better than this, the question cannot but arise whether we are not overrating its necessity for mankind, and whether we do wisely in basing our cultural demands upon it.

I do not doubt that it would be easier for fate to take away your suffering than it would for me. But you will see for yourself that much has been gained if we succeed in turning your hysterical misery into common unhappiness.

Religion is an attempt to get control over the sensory world, in which we are placed, by means of the wish-world, which we have developed inside us as a result of biological and psychological necessities... If one attempts to assign to religion its place in man's evolution, it seems not so much to be a lasting acquisition, as a parallel to the neurosis which the civilized individual must pass through on his way from childhood to maturity.