I have an infamously low capacity for visualizing relationships, which made the study of geometry and all subjects derived from it impossible for me.

A transference neurosis corresponds to a conflict between ego and id, a narcissistic neurosis corresponds to that between between ego and super-ego, and a psychosis to that between ego and outer world.

A man's heterosexuality will not put up with any homosexuality, and vice versa.

Do you not know how uncontrolled and unreliable the average human being is in all that concerns sexual life?

It could be ventured to understand obsessive compulsive neurosis as the pathological counterpart of religious development, to define neurosis as an individual religiosity; to define religion as a universal obsessive compulsive neurosis.

A love that does not discriminate seems to me to forfeit a part of its own value, by doing an injustice to its object; and secondly, not all men are worthy of love.

Not to know the past is to be in bondage to it, while to remember, to know, is to be set free.