"One of the most perfectly constructed lines in English poetry is, 'To err is human, to forgive, divine.' How perfect is the balance of those words. They enshrine two of the greatest mysteries which, as Christians, we are bound to accept. The doctrine, I mean, that man, being what he is, can rebel against God; and the doctrine that God, being what He is, can forgive man." Father Ronald Knox For Reflection: How do the two "greatest mysteries" expressed by Father Knox encompass the whole of salvation history? How do they apply specifically to me? To what end do they prompt me?