I think it wrong to sit on a man. Soon, I shall think it wrong to sit on a horse. Eventually (I suppose) I shall think it wrong to sit on a chair. That is the drive of the argument. And for this argument it can be said that it is possible to talk of it in terms of evolution or inevitable progress. A perpetual tendency to touch fewer and fewer things might, one feels, be a mere brute unconscious tendency, like that of a species to produce fewer and fewer children. This drift may be really evolutionary, because it is stupid.
