Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?
“It was a mistake. I was wrong, but I discovered this many years later. I was acting on the basis of this mandate given me by the most important leaders of the world: President Bush's father, prime minister of France, President Mitterand, the Chinese, everybody.”