Saw him live twice. Once when I was at school and he came to our British Association of Young Scientists group. Very inspirational, made me consider his course at Durham (although in the end I didn't do biology and wouldn't have got in there anyway) and once, many years later when he was getting political. Much of what he said was good sense, but I did disagree with some of his solutions.
But the world will be a duller place without him.