“My father had a saying too. Never wound a foe when you can kill him. Dead men don’t claim vengeance.”
“Their sons do,” said Hoster, apologetically.
“Not if you kill the sons as well. Ask the Casterlys about that if you doubt me. Ask Lord and Lady Tarbeck, or the Reynes of Castamere. Ask the Prince of Dragonstone.” For an instant, the deep red clouds that crowned the western hills reminded him of Rhaegar’s children, all wrapped up in crimson cloaks.
“Is that why you killed all the Starks?”
Jaime Lannister and Hoster Blackwood, Chapter 43, A Dance With Dragons