A poor girl may have an illusion that a prince will come and fetch her home. It is possible, some such cases have occurred. That the Messiah will come and found a golden age is much less probable.

Creativity is an attempt to resolve a conflict generated by unexpressed biological impulses, such that unfulfilled desires are the driving force of the imagination, and they fuel our dreams and daydreams.

The psychoanalysis of neurotics has taught us to recognize the intimate connection between wetting the bed and the character trait of ambition.

Neurosis is the result of a conflict between the ego and its id, whereas psychosis is the analogous outcome of a similar disturbance in the relation between the ego and the external world.

The ego represents what we call reason and sanity, in contrast to the id which contains the passions.

The reproaches against science for not having yet solved the problems of the universe are exaggerated in an unjust and malicious manner; it has truly not had time enough yet for these great achievements. Science is very young--a human activity which developed late.

I prefer the company of animals more than the company of humans. Certainly, a wild animal is cruel. But to be merciless is the privilege of civilized humans.