Every man has a right over his own life and war destroys lives that were full of promise; it forces the individual into situations that shame his manhood, obliging him to murder fellow men, against his will.
Sigmund FreudCruelty and intolerance to those who do not belong to it are natural to every religion.
Sigmund FreudThere is no likelihood of our being able to suppress humanity's aggressive tendencies... Complete suppression of man's aggressive tendencies is not an issue; what we may try is to direct it into a channel other than that of warfare.
Sigmund Freud