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

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.

If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans.

Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.

One could imagine such technology outsmarting financial markets, out-inventing human researchers, out-manipulating human leaders, and developing weapons we cannot even understand.

Children in backseats cause accidents. Accidents in backseats cause children.

We could call order by the name of God, but it would be an impersonal God. There's not much personal about the laws of physics.