To be is to be vulnerable.
Truth is error burned up.
The insane do not share the normal prejudice in favor of external reality.
The boundary line between self and external world bears no relation to reality; the distinction between ego and world is made by spitting out part of the inside, and swallowing in part of the outside.
Meaning is not in things but in between them.
Psychoanalysis can provide a theory of 'progress,' but only by viewing history as a neurosis.