We cannot hope to either understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.

You ask: what is the meaning or purpose of life? I can only answer with another question: do you think we are wise enough to read God's mind?

The greatest unsolved mysteries are the mysteries of our existence as conscious beings in a small corner of a vast universe.

If you want to have a program for moving out into the universe, you have to think in centuries not in decades.

A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.

Technology must be guided and driven by ethics if it is to do more than provide new toys for the rich.

The idea that global warming is the most important problem facing the world is total nonsense and is doing a lot of harm.

Unfortunately the global warming hysteria, as I see it, is driven by politics more than by science.

In the end it is how you fight, as much as why you fight, that makes your cause good or bad.

So long as you have courage and a sense of humor, it is never too late to start life afresh.

Technology is a gift of God. After the gift of life it is perhaps the greatest of God's gifts. It is the mother of civilizations, of arts and of sciences.

like a soulmate he's your penguin

If I had been at a University I don't think I would have been able to have the experience I had in my Smithsonian work. I don't think I have been as successful

A token of love comes in a box because love itself cannot be contained.

Dad was a bus driver, and when he finished work he would repair cars.

Boys never believe I can beat them, she told me back then. But I always win in the end.

My mom always told me that if you work hard, you can achieve anything. And it's true. It's one of the truest things ever.

I don't mind aging, I just don't want to be a day older.

Francois Rabelais. He was a poet. And his last words were "I go to seek a Great Perhaps." That's why I'm going. So I don't have to wait until I die to start seeking a Great Perhaps.

Power at its best is love implementing the demand of justice.

The life of Jesus Christ is a message of hope, a message of mercy, a message of life in a dark world.