It is impossible to overlook the extent to which civilization is built upon a renunciation of instinct.
Sigmund FreudI consider it a good rule for letter-writing to leave unmentioned what the recipient already knows, and instead tell him something new.
Sigmund FreudConcerning the factors of silence, solitude and darkness, we can only say that they are actually elements in the production of the infantile anxiety from which the majority of human beings have never become quite free.
Sigmund Freud