“Boards don't hit back.”
As "Mr. Lee" in Enter the Dragon (1973); Bruce Lee's character said this to Robert Wall's character "O'Hara", after the latter had broken a board in the air with his fist in an act of attempted intimidation.
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Bruce Lee 193
Hong Kong-American actor, martial artist, philosopher and f… 1940–1973Related quotes

“Don't hit at all if it is honorably possible to avoid hitting; but never hit soft!”

“They made hypocrite judgments after the fact,
But the name of the game is be hit and hit back.”
"Boom Boom Mancini"
Sentimental Hygiene (1987)

TV.com
Source: http://www.tv.com/patrick-stump/person/412086/summary.html TV.com Patrick Stump.

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].

State of the Union
2011-10-09
Television, quoted in * Cain: Racism not holding anyone back
Political Ticker
2011-10-09
Kevin
Liptak
CNN
http://politicalticker.blogs.cnn.com/2011/10/09/cain-racism-not-holding-anyone-back/