In so doing, the idea forces itself upon him that religion is comparable to a childhood neurosis, and he is optimistic enough to suppose that mankind will surmount this neurotic phase, just as so many children grow out of their similar neurosis.
Sigmund Freud, James Strachey, Anna Freud, Carrie Lee Rothgeb (1961). “The Standard Edition of the Complete Psychological Works of Sigmund Freud”