Man-made computers are limited in their performance by finite processing speed and memory. So, too, the cosmic computer is limited in power by its age and the finite speed of light.

It will be in the convergence of evolutionary biology, developmental biology and cancer biology that the answer to cancer will lie. Nor will this confluence be a one-way street.

The thing about lucid dreams is that it's not like the real world where you are constrained by all sorts of things, including the laws of physics - you can do magic.

It may seem bizarre, but in my opinion science offers a surer path to God than religion.

The laws of physics ... seem to be the product of exceedingly ingenious design... The universe must have a purpose.

In science, a healthy skepticism is a professional necessity, whereas in religion, having belief without evidence is regarded as a virtue.

To a physicist life looks nothing short of a miracle. It's just amazing what living things can do.

If we knew we were not alone in the universe it would have a very, very deep impact on our worldview, on our understanding of our place in the universe.

Science is about explaining the world, and religion is about interpreting it. There shouldn't be any conflict.

The Goldilocks Enigma is the idea that everything in the universe is just right for life, like the porridge in the fairy tale.

Technology is, in the broadest sense, mind or intelligence or purpose blending with nature.

A bow is useless without an arrow.

Art is difficult transient is her reward.

I chatter chatter as I flow To join the brimming river For men may come and men may go But I go on forever.

In a revolution, as in a novel, the most difficult part to invent is the end.

Art is man determined to die sane.

Let the blacksmith wear the chains he has himself made.

My experience from 20 years of Africa is that the seemingly impossible is possible.

To talk about photos rather than making them seems idiotic to me. It's as though I went on and on about a woman I adored instead of making love to her.

If we believe that tomorrow will be better, we can bear a hardship today

I was very involved with school by the time I was 15 and wasn't working much as a model