Salvador Dalí’s aberrations are partly explicable. Perhaps they are a way of assuring himself that he is not commonplace. The two qualities that Dali unquestionably possesses are a gift for drawing and an atrocious egoism. ‘At seven’, he says in the first paragraph of his book, ‘I wanted to be Napoleon. And my ambition has been growing steadily ever since.’ This is worded in a deliberately startling way, but no doubt it is substantially true. Such feelings are common enough. ‘I knew I was a genius’, somebody once said to me, ‘long before I knew what I was going to be a genius about.