If I have questions about the universe on my mind when I go to bed, I can't turn off. I dream equations all night.

It is a waste of time to be angry about my disability. One has to get on with life and I haven't done badly. People won't have time for you if you are always angry or complaining.

We got through all of Genesis and part of Exodus before I left. One of the main things I learned from this exercise was not to begin a sentence with "And." When I pointed out that most sentences in the Bible began with "And," I was told that English had changed since the time of King James. In that case, I argued, why make us read the Bible? But it was in vain. Robert Graves at that time was very keen on the symbolism and mysticism in the Bible.

More often than politicians, but not as often as they should.

For millions of years, mankind lived just like the animals. Then something happened which unleashed the power of our imagination. We learned to talk and we learned to listen.

Save water. Shower with your girlfriend.

A million million million million (1 with twenty-four zeros after it) miles, the size of the observable universe.