When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.

Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgement, the manner in which information is coordinated and used.

The way to find out about our place in the universe is by examining the universe and by examining ourselves - without preconceptions, with as unbiased a mind as we can muster.

I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.

In exchange for freedom of inquiry, scientists are obliged to explain their work.

There are wonders enough out there without our inventing any.

One of the great commandments of science is: 'Mistrust arguments from authority.'