Well, I mean, other people have told me what my weaknesses are, but I don't agree with them. Like, you know, I'm insulting, I'm arrogant and so on. I don't think I am, actually. I think I'm pretty honest basically and… and I think I know what I'm trying to do and I think that science is so important and what we're trying to do is so important within it, that I sometimes do express impatience with the sort of people that lie in the way. Well, I think one of my great advantages is I have a good sense of humour, particularly about myself. And that's one of the great things that, I think, one ought to have. I think once one has a complete… once… what one should always have is a complete sense of how ludicrous… not possibly how ludicrous you are, but how ludicrous you can be, and I think that's very important. Pomposity is one of my great fears. I think pompousness in an old man is terrible. Of course, pomposity in a young man is… is absolutely beyond the pale. After that I consider, you know, that I've been very lucky to have survived the… this whole path in science and have been able to indulge in what I wanted to do, but as I've always said, if one can do what one is interested in and be of benefit to mankind, why not?