When we Christians behave badly, or fail to behave well, we are making Christianity unbelievable to the outside world. The wartime posters told us that Careless Talk costs Lives. It is equally true that Careless Lives cost Talk. Our careless lives set the outer world talking; and we give them grounds for talking in a way that throws doubt on the truth of Christianity itself.
C. S. LewisNow we cannot...discover our failure to keep God's law except by trying our very hardest (and then failing). Unless we really try, whatever we say there will always be at the back of our minds the idea that if we try harder next time we shall succeed in being completely good. Thus, in one sense, the road back to God is a road of moral effort, of trying harder and harder. But in another sense it is not trying that is ever going tobring us home. All this trying leads up to the vital moment at which you turn to God and say, "You must do this. I can't.
C. S. Lewis[God] will not be used as a convenience. Men or nations who think they can revive the Faith in order to make a good society might just as well think they can use the stairs of heaven as a shortcut to the nearest chemist's shop.
C. S. Lewis