If you reject the infinite, you are stuck with the finite, and the finite is parochial... the best explanation of anything eventually involves universality, and therefore infinity. The reach of explanations cannot be limited by fiat.

Science is objective. And in my view we cannot take any experimental results seriously except in the light of good explanations of them.

Feeling insignificant because the universe is large has exactly the same logic as feeling inadequate for not being a cow.

Time travel may be achieved one day, or it may not. But if it is, it should not require any fundamental change in world-view, at least for those who broadly share the world view I am presenting in this book.

It is possible to build a virtual-reality generator whose repertoire includes every possible environment.

Our best theories are not only truer than common sense, they make more sense than common sense...

If we can't program it, we can't understand it.