I thought Eddie Redmayne portrayed me very well... At times I thought he was me.

In Britain, like most of the developed world, stem-cell research is regarded as a great opportunity. America will be left behind if it doesn't change policy.

If you are lucky enough to find love, remember it is there and don't throw it away.

It often happens that I have an idea, but then I try to fill in the intermediate steps and find they don't work, so I have to give it up.

Why do we remember the past, but not the future?

We've created life in our own image.

In the last 200 years the population of our planet has grown exponentially, at a rate of 1.9% per year. If it continued at this rate, with the population doubling every 40 years, by 2600 we would all be standing literally shoulder to shoulder.