Wilson touches upon a point that I have myself been ruminating on a bit lately: If there is only causation, there is no motivation. What one does is merely the outcome of the chain of causation that you happen to be - and that is all that you are. So Richard Dawkins preaches atheism because he is helpless to do otherwise, being forced to do so by the chain of causation that he is. And I argue against his position because I am helpless to do otherwise, and for the same reason. Everything that happens - and you must include people in the category of eveything - is simply a consequence of whatever happened previously. The Nazis perpetrated the Holocaust because they were caused to. The opponents of slavery opposed it, not because it was wrong, but because they were caused to. Slavery and the Holocaust can't be thought of as wrong because nothing can be. Things just happen. You just happen. And so do I. I think this is a perfectly logical way of looking at things if you accept the premise of pure, impersonal causation. I have my doubts, however, as to whether anyone can or does honestly live in accordance with it.