When I give this talk to a physics audience, I remove the quotes from my 'Theorem'.

Energy is the ultimate convertable currency.

Einstein's theory of relativity does a fantastic job for explaining big things. Quantum mechanics is fantastic for the other end of the spectrum - for small things.

Sometimes nature guards her secrets with the unbreakable grip of physical law. Sometimes the true nature of reality beckons from just beyond the horizon.

Physicists have come to realize that mathematics, when used with sufficient care, is a proven pathway to truth.

All you are is a bag of particles acting out the laws of physics. That to me is pretty clear.

The beauty of string theory is the metaphor kind of really comes very close to the reality. The strings of string theory are vibrating the particles, vibrating the forces of nature into existence, those vibrations are sort of like musical notes. So string theory, if it's correct, would be playing out the score of the universe.