In every age immorality has found no less support in religion than morality has. If the achievements of religion in respect to man's happiness, susceptibility to culture and moral control are no better than this, the question cannot but arise whether we are not overrating its necessity for mankind, and whether we do wisely in basing our cultural demands upon it.
Sigmund FreudOne must learn to give up momentary, uncertain and destructive pleasure for delayed, restrained, but dependable pleasure.
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 Freud