Smoking is indispensable if one has nothing to kiss - Sigmund Freud

"The Dissolution of the Oedipus Complex" (1924) (original text in German)

If you want to expel religion from our European civilization, you can only do it by means of another system of doctrines; and such a system would from the outset take over all the psychological characteristics of religion — the same sanctity, rigidity and intolerance, the same prohibition of thought — for its own defence. You have to have something of the kind in order to meet the requirements of education. And you cannot do without education.

I cannot inquire into whether the abolition of private property is expedient or advantageous. But I am able to recognize that the psychological premisses on which the [system]] is based are an untenable illusion. In abolishing private property we deprive the human love of aggression of one of its instruments, certainly a strong one, though certainly not the strongest, but we have not altered the differences in power and influence which are misused by aggressiveness, nor have we altered anything in its nature. Aggressiveness was not created by property. It reigned almost without limit in primitive times, when property was still very scanty, and it already shows itself in the nursery almost before property has given up its primal, anal form; it forms the basis of every relation of affection and love among people (with the single exception, perhaps, of the mother's relations to her male child).