It might be said of psychoanalysis that if you give it your little finger it will soon have your whole hand.
The ego is not master in its own house.
The communal life of human beings had . . . a two-fold foundation: the compulsion to work, which was created by external necessity, and the power of love.
A man's heterosexuality will not put up with any homosexuality, and vice versa.
The only shame in masturbation is the shame of not doing it well.
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.