Scientists tend to risk theories they admire

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.

Work gives you meaning and purpose and life is empty without it.

No one can resist the idea of a crippled genius.

I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.

I do not believe in a personal God.

Most sets of values would give rise to universes that, although they might be very beautiful, would contain no one able to wonder at that beauty.