My father was a very good Boy Scout. He was very skilled with knots, and he showed me how to tie a bow tie.

If you decide to become a dancer on Broadway, never say who your favorite dance partner is, because members of the media will presume you never want to dance with anybody else.

You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.

America has had many other discoverers besides Columbus, but he seems to have made more satisfactory arrangements with the historians than any of the others.

If you look back on all the teachers that you liked, I am sure you will find they were very entertaining.

If we raise a generation of students who dont believe in the process of science, who think everything that weve come to know about nature and the universe can be dismissed by a few sentences translated into English from some ancient text, youre not going to continue to innovate.

There are two ways to be rich: to have more or need less. It's estimated that we squander about 30 percent of our energy leaving the lights on, the refrigerator door open, and so on. Then there is the enormous amount of food that we expend huge amounts of energy to raise and then throw away.