Brian Greene

One of the strangest features of string theory is that it requires more than the three spatial dimensions that we see directly in the world around us. That sounds like science fiction, but it is an indisputable outcome of the mathematics of string theory.

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.

People have this idea that the more pious and devout I am, the more successful I am. Which is very dangerous. If you look at faith in that way, you're bound to fail at both - spiritually and in your career.

I try not to set myself up as different or as a celebrity or special. I have a husband that can get on my nerves. I have kids that test my patience. I've got a cat I can't keep off the sofa. It's real. On a bad day, I'm reading 'Acts of Faith.'

I've found that in now having experienced what it's like to make records and just through growing up in general that you should be expressive about what's affecting you instead of trying to sing about a subject just for the sake of other people getting something from it.