There is no obligation on us to be richer, or busier, or more efficient, or more productive, or more progressive, or in any way worldlier or wealthier, if it does not make us happier. Mankind has as much right to scrap its machinery and live on the land, if it really likes it better, as any man has to sell his old bicycle and go for a walk, if he likes that better. It is obvious that the walk will be slower; but he has no duty to be fast. And if it can be shown that machinery has come into the world as a curse, there is no reason whatever for our respecting it because it is a marvellous and practical and productive curse. There is no reason why we should not leave all its powers unused, if we have really come to the conclusion that the powers do us harm.