Jaime Lannister: It must be strange for you... coming into this room. I was standing right here when it happened. He was very brave, your brother. Your father too. They didn't deserve to die like that. Nobody deserves to die like that.
Eddard Stark: But you just stood there and watched.
Jaime Lannister: Five hundred men just stood there and watched. All the great knights of the Seven Kingdoms. You think anyone said a word, lifted a finger? No, Lord Stark. Five hundred men and this room was silent as a crypt. Except for the screams, of course, and the mad king laughing. And later... when I watched the mad king die, I remembered him laughing as your father burned... it felt like justice.
Eddard Stark: Is that what you tell yourself at night? You're a servant of justice? That you were avenging my father when you shoved your sword in Aerys Targaryen's back?
Jaime Lannister: Tell me: if I'd stabbed the mad king in the belly instead of the back, would you admire me more?
Eddard Stark: You served him well when serving was safe.