We have an infinite amount to learn both from nature and from each other.

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

By its very definition, civic responsibility means taking a healthy role in the life of one's community. That means that classroom lessons should be complemented by work outside the classroom. Service-learning does just that, tying community service to academic learning.

You know, old folks can have dreams, too, as well as young folks, and then work toward them. And to have a dream like this come true for me is just a terrific experience.

I suppose the one quality in an astronaut more powerful than any other is curiosity. They have to get some place nobody's ever been.

I think in America we have to get back to being the best educated general citizenry in the world and make sure we do not lose our lead in research, if we're to have a leadership position in the world.

That whole day [ of the space flight] is very vividly impressed on my memory because it was such a new experience. We hadn't done that before. And then I've recalled it so often since then I think that it's a - it's remained very vivid over the past 50 years, seems to me like about a week or two instead of 50 years.