"Although martyrdom represents the high point of the witness to moral truth, and one to which relatively few people are called, there is nonetheless a consistent witness which all Christians must daily be ready to make, even at the cost of suffering and grave sacrifice. Indeed, faced with the many difficulties which fidelity to the moral order can demand, even in the most ordinary circumstances, the Christian is called, with the grace of God invoked in prayer, to a sometimes heroic commitment. In this he or she is sustained by the virtue of fortitude, whereby--as Gregory the Great teaches--one can actually "love the difficulties of this world for the sake of eternal rewards." From the Encyclical Letter Veritatis Splendor (the Spelndor of Truth) by Pope John Paul II.