The Western Christian doctrine of atonement—one not held by the Greek Orthodox—is sometimes difficult to understand: it is hard to imagine how a compassionate God would demand such suffering as the price of our salvation. But the French philosopher Peter Abelard (c. 1079–1142) suggested an alternative: when we look at the crucifix, our hearts break in sympathy and fellow feeling—and it is this interior movement of compassion and instinctive empathy that saves us.