" But easy victories pall after a while. If one always wins, perhaps one is attempting only what is well within one’s capabilities—and there lies a kind of death, don’t you think? That which does not grow may well be showing the first signs of atrophy. "

― Anne Perry , The William Monk Mysteries: The Face of a Stranger / A Dangerous Mourning / Defend and Betray (William Monk, #1-3)