"Are you a good man, Davos Seaworth?” she asked.
Would a good man be doing this? “I am a man”, he said. “I am kind to my wife, but I have known other woman. I have tried to be a father to my sons, to help make them a place in this world. Aye, I’ve broken laws, but I never felt evil until tonight. I would say my parts are mixed m’lady. Good and bad.”
“A grey man,” she said. “Neither white nor black, but partaking of both. Is that what you are Ser Davos?”
“What if I am? It seems to me that most men are grey.”
“If half of an onion is black with rot, it is a rotten onion. A man is good, or he is evil."
George R.R. Martin’s A Clash Of Kings