Not all men are worthy of love.

Incidentally, why was it that none of all the pious ever discovered psycho-analysis? Why did it have to wait for a completely godless Jew?

I take up the standpoint that the tendency to aggression is an innate, independent, instinctual disposition in man, and I come back now to the statement that it constitutes the most powerful obstacle to culture.

A state of consciousness is characteristically very transitory; an idea that is conscious now is no longer so a moment later, although it can become so again under certain conditions that are easily brought about.

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

I have never doubted that religious phenomena are only to be understood on the pattern of the individual neurotic symptoms familiar to us.

The paranoid is never entirely mistaken.