If there is one thing I’ve learned in my years on this planet, it’s that the happiest and most fulfilled people I’ve known are those who devoted themselves to something bigger and more profound than merely their own self interest.

On K-12 education America has gone down, down, down compared to the other nations. It doesn't mean that we have gotten dumber. It just means that we have not advanced as fast in those areas as other nations have done, and we're way down right now.

I don't know what you could say about a day in which you have seen four beautiful sunsets.

Just because I'm 77 doesn't mean I don't have a dream.

We (the DOE) are poisoning our people in the name of national security.

There are times when you devote yourself to a higher cause than personal safety.

We're going to go to the moon. We're going to go on to Mars. We're going to set up a base on the moon. OK, but no money to pay for it, nothing in the budget for it. And so the decision made at that time was to cancel the whole shuttle program to save money, which I think was very, very short sighted.