Of course, the English countryside is completely artificial. It was naturally a forest; they chopped down the trees and made it into what it is now: really a beautiful country.

The media always tries to make everything into a disaster, but it's mostly rubbish.

One factor that has remained constant through all the twists and turns of the history of physical science is the decisive importance of the mathematical imagination.

Climate change is part of the normal order of things, and we know it was happening before humans came.

Science is my territory, but science fiction is the landscape of my dreams.

The marketplace judges technologies by their practical effectiveness, by whether they succeed or fail to do the job they are designed to do.

Thanks to the discoveries of astronomers in the twentieth century, we now know that the heat death is a myth. The heat death can never happen, and there is no paradox.