You must remember we are all creatures of imitation: precept may teach us, but it is example that draws us. There is that in us all, that we are always disposed to catch the ways of those with whom we live; and the more we like them, the stronger does the disposition grow. Without our being aware of it, they influence our tastes and opinions; we gradually give up what they dislike, and take up what they like, in order to become closer friends with them. And, worst of all, we catch their ways in things that are wrong far quicker than in things that are right. Health, unhappily, is not contagious, but disease is. It is far easier to catch a chill than to impart a warmth; and to make each other's religion dwindle away, than grow and prosper.