And exactly how does a miserable face help the war effort?" he asked sharply, his mood beginning to change. "Will a frown bring back the dead or fortify a town? If I allow myself to laugh in the face of misery, I rest my mind from the stress of it all, and then it'll work the better for you and your war. And if I'm really to be one of your advisers, Your Majesty, accept this piece of advise: Take happiness where and when you find it, because there is going to be precious little of it in the next few months!
Stuart Hill (2011). “The Icemark Chronicles #1: Cry of the Icemark”, p.162, Scholastic Inc.