What I have done is to show that it is possible for the way the universe began to be determined by the laws of science. In that case, it would not be necessary to appeal to God to decide how the universe began. This doesn't prove that there is no God, only that God is not necessary.

The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.

The more you learn, the more you know. The more you know, the more you forget. The more you forget, the less you know. So why bother to learn.

We've created life in our own image.

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.

When I hear of Schrödinger's cat, I reach for my pistol.

We are very, very small, but we are profoundly capable of very, very big things.