Research is creating new knowledge.

Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.

History will remember the twentieth century for two technological developments: atomic energy and space flight.

There are two of them up here.

I guess we all like to be recognized not for one piece of fireworks but for the ledger of our daily work.

I think we're going to the moon because it's in the nature of the human being to face challenges. It's by the nature of his deep inner soul... we're required to do these things just as salmon swim upstream.

It never hurts to have friends around, so that's why you'd form a crew.