The central idea of string theory is quite straightforward. If you examine any piece of matter ever more finely, at first you'll find molecules, atoms, sub-atomic particles. Probe the smaller particles, you'll find something else, a tiny vibrating filament of energy, a little tiny vibrating string.

The idea that there could be other universes out there is really one that stretches the mind in a great way.

It's hard to teach passionately about something that you don't have a passion for.

Gravity is matter’s sugar daddy.

Assessing existence while failing to embrace the insights of modern physics would be like wrestling in the dark with an unknown opponent.

A unified theory would put us at the doorstep of a vast universe of things that we could finally explore with precision.

Science is a way of life. Science is a perspective. Science is the process that takes us from confusion to understanding in a manner that's precise, predictive and reliable - a transformation, for those lucky enough to experience it, that is empowering and emotional.