A transference neurosis corresponds to a conflict between ego and id, a narcissistic neurosis corresponds to that between between ego and super-ego, and a psychosis to that between ego and outer world.

You wanted to kill your father in order to be your father yourself. Now you are your father, but a dead father.

Immorality, no less than morality, has at all times found support in religion.

In the long run, nothing can withstand reason and experience, and the contradiction religion offers to both is palpable.

My way of working was different years ago. I used to wait until an idea came to me. Now I go half-way to meet it, though I don't know whether I find it any the quicker.

Whatever fosters the growth of civilization works at the same time against war.

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.