"...in chasing after these lofty goals of yours, you seem to have lost sight of some basic truths. To win a war, you must be willing to do whatever it takes. To fight, to kill, and, if necessary, to die. The path you've chosen is paved with the dead. Walk it with your eyes open, or not at all."
I'm pretty hardened at this point, but that one kept me awake for a while. I really liked the character as well. People who've read Martin say that's his trademark-he makes you like a character then kills him off in the most horrific way possible.