“Turks can be killed, but they can never be conquered.”

“Beat me, hate me
You can never break me
Will me, thrill me
You can never kill me.”

“I am the one thing you can never kill. I am Hope.”

“The hitter can never be the judge. Only the receiver of the blow can tell you how hard it was, whether it would kill a man or make a baby just yawn.”

“If it can bleed, we can kill it.”

“Those that can heal can harm; those that can cure can kill.”

“If the other fellow can't tell you his story, you can never be sure he isn't trying to kill you.”

“Ideas are more difficult to kill than people, but they can be killed, in the end.”

“A soldier is a "Yahoo" hired to kill in cold blood as many of his own Species, who have never offended him, as possibly he can.”

“Sticks and stones can break your bones, but names can kill you.”