Well, I don't want to end on... on such a pessimistic note, and so since I was given the opportunity, which I'm not sure whether it's really a... something that I should appreciate, but, anyway, since I've been given this opportunity to talk about myself and to go over what has been a fairly long life... I would say that when I look back... in terms of chance and necessity, which has become, as I said, my main interest... scientific interest – chance and necessity as far as life is concerned – and scientifically my conclusion has been more necessity, less chance than Jacques Monod, Weinberg and others maintain. As it... in terms of my own life, I would say more chance than necessity. Many, many, many of the turning points in this rather circuitous and indirect pathway that I have followed; many of those turning points have been due to chance events – chance events that I had no responsibility for and certainly can claim no credit for. And so I'm... I've been fortunate. Chance has helped me. If there has been necessity, as I look back, I think I can say, yes, there's been one sort of dominating feeling in my own mind and it's the kind of desire or need, ambition for... to excel. Now that's a very nasty thing, but that happens to be... I've always wanted to be first, and I... I have to acknowledge that. But not... not to become famous, not to become powerful, not to... to become wealthy. I've not become anything to those sorts of things. I think because I had this instinctive admiration for excellence, for doing the best possible thing whenever you were asked to do something, and in my little scientific life, that is essentially what I have tried to do – to cultivate excellence – and I think that probably has been the straight line throughout all these detours that chance has created on the pathway.