Exploration by real people inspires us.

To confine our attention to terrestrial matters would be to limit the human spirit.

We explore because we are human and we want to know. I hope that Pluto will help us on that journey.

Women. They are a complete mystery.

I don't want to write an autobiography because I would become public property with no privacy left.

Because there is a law such as gravity, the Universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the Universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the Universe going.

Science does not deny religion, it just offers a simpler alternative.