The above is the title of Richard Feynman's autobiography. He was a genius (got a Nobel prize for his work in quantum physics) and very cool - a hit with the ladeez due to his intelligence and, apparently, his good looks.
But judge for yourself, on this first part of his conference on the relation between Maths and Physics. It's worth watching. Hint: at one point he compares the relation between Maths and Physics to the relation between masturbation and sex. Do you want to miss that?
Let me know if you liked it.