We should get used to the idea that we'll probably never be able to find - and confirm - a good explanation of the ultimate origin of the universe, though I see no reason to believe that we can't press much further on this question than we have managed to date.

I think many people are terribly afraid of being demoted by the Darwinian scheme from the role of authors and creators in their own right into being just places where things happen in the universe.

The juvenile sea squirt wanders through the sea searching for a suitable rock or hunk of coral to cling to and make its home for life. For this task, it has a rudimentary nervous system. When it finds its spot and takes root, it doesn't need its brain anymore so it eats it!

In short, we need to recover the courage we celebrate in our heroes, and in particular, the courage to tolerate, for the sake of a free society, a level of risk we hardly ever imagined in the past.

The older generation had greater respect for land than science. But we live in an age when science, more than soil, has become the provider of growth and abundance. Living just on the land creates loneliness in an age of globality.

Starting early and getting girls on computers, tinkering and playing with technology, games and new tools, is extremely important for bridging the gender divide that exists now in computer science and in technology.

What I see in science is a lot of imagination referring to things that are fundamental to what we are. Our cells, our history, our future, our place in the universe, our lack of place in the universe. That's poetry as far as I'm concerned.

Even in technology, you have the freedom to solve a problem your way, you see. But it naturally sits in a certain framework whereas, in the physics, everybody had to come up with his own idea what he was going to do.