Where id was, there ego shall be.

There is no likelihood of our being able to suppress humanity's aggressive tendencies... Complete suppression of man's aggressive tendencies is not an issue; what we may try is to direct it into a channel other than that of warfare.

I should like to raise the question whether the inevitable stunting of the sense of smell as a result of man's turning away from the earth, and the organic repression of the smell-pleasure produced by it, does not largely share in his predisposition to nervous diseases.

Yes, America is gigantic, but a gigantic mistake.

When someone abuses me I can defend myself, but against praise I am defenceless.

When it happens that a person has to give up a sexual object, there quite often ensues an alteration of his ego which can only be described as a setting up of the object inside the ego, as it occurs in melancholia; the exact nature of this substitution is as yet unknown to us.

One becomes gradually accustomed to a new realization of the nature of 'happiness': one has to assume happiness when Fate does not carry out all its threats simultaneously.