" When we are happy to turn from evil because it is ugly, and causes us distress, then we condone it and become party to its continuance. Little by little, we become as guilty of it as those who commit the act—because we have told them by our silence that it is acceptable. "

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