“The most important thing, my father told me, which I have never forgotten, and which I have often put unto practice was: If you get into a quarrel with anybody, hit him first. "If you hit first, the battle is half-won," my father always said "Don't let him hit first. You hit him first."
"What's more," he never forgot to say, too "Usually one blow is all you need."”

This is the Truth! (1949)

Willy Wet Leg (1929)

Clancy Brown interview: Warcraft, Nothing Left to Fear http://www.denofgeek.com/us/movies/clancy-brown/233112/clancy-brown-interview-warcraft-nothing-left-to-fear (February 18, 2014)

TV show with Ednita Nazario

1950s, Loving Your Enemies (November 1957)
Context: I think the first reason that we should love our enemies, and I think this was at the very center of Jesus’ thinking, is this: that hate for hate only intensifies the existence of hate and evil in the universe. If I hit you and you hit me and I hit you back and you hit me back and go on, you see, that goes on ad infinitum. It just never ends. Somewhere somebody must have a little sense, and that’s the strong person. The strongperson is the person who can cut off the chain of hate, the chain of evil. And that is the tragedy of hate, that it doesn’t cut it off. It only intensifies the existence of hate and evil in the universe. Somebody must have religion enough and morality enough to cut it off and inject within the very structure of the universe that strong and powerful element of [[love].

Source: Mind is a Myth (1987), Ch. 4: There Is Nothing To Understand

Source: Ham on Rye