“Today's preoccupation with physical theories of everything takes a wrong turn from the purpose of science - to question all things relentlessly. Modern physics has become like Swift's kingdom of Laputa, flying absurdly on an island above the earth and indifferent to what is beneath.”

“I'm not a good time-off person. I'm awful on holiday. It comes from having that period when I didn't work. That really was the worst bit.”