" The magic of Paul’s intelligence is that he has more patience than anyone I’ve ever met, and with it he simply wears problems down. To count a hundred million stars, he told me once, at the rate of one per second, sounds like a job that no one could possibly complete in a lifetime. In reality, it would only take three years. The key is focus, a willingness not to be distracted. And that is Paul’s gift: an intuition of just how much a person can do slowly. "

― Ian Caldwell , The Rule of Four