Now, radical forward thinking is offering hope for the future: Replacement body parts to order. A team of scientists in California believe that if you can design them on a computer, you should be able to print them out.

The past, like the future, is indefinite and exists only as a spectrum of possibilities.

What I have learned from life is to make the most of what you have got.

Real science can be far stranger than science fiction and much more satisfying.

Among physicists, I'm respected I hope.

Jesus loves you, but everyone else thinks you're an ass.

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.