An intimate friend and a hated enemy have always been indispensable requirements for my emotional life; I have always been able to create them anew, and not infrequently my childish ideal has been so closely approached that friend and enemy coincided in the same person.

Religious illusion must bow to scientific truth. It is in total error about the nature of the true world. Only science is not an illusion.

What is common in all these dreams is obvious. They completely satisfy wishes excited during the day which remain unrealized. They are simply and undisguisedly realizations of wishes.

The meager satisfaction that man can extract from reality leaves him starving.

Opposition is not necessarily enmity; it is merely misused and made an occasion for enmity.

The three major mother gods of the Eastern populations seemed to be generating and destroying entities at the same time; both goddesses of life and fertility as well as goddesses of death.

Just as no one can be forced into belief, so no one can be forced into unbelief.