“I fought in a bigger war than you will ever know. I did worse things than you could ever imagine. And when I close my eyes... I hear more screams than anyone could ever be able to count! And do you know what you do with all that pain? Shall I tell you where you put it? You hold it tight... till it burns your hand, and you say this: No-one else will ever have to live like this! No-one else will ever have to feel this pain! Not on my watch!” WarPainDoctor WhoTwelfth Doctor Book:Doctor Who: The Zygon Invasion Source: Doctor Who: The Zygon Invasion