Almost everything about the universe is astounding.

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.

If Apple's a technology company in the music industry, why can't somebody in the music industry make technology?

Reclaim our environment from those who would destroy it with their predatory economic behavior.

If you can see it, you can have it.

The tough thing about a campaign being over is, you lose your enemy.

There is no misery quite so wearing as the misery of a false position. It seems to slay the body and the soul.

I'm going with the understanding that I've done my duty.

To live in the past or in the future may be less satisfying than to live in the present, but it can never be as disillusioning.

Medical school had been a time for imaginary diseases and Martin had contracted almost all of them.

If a man's public record be a clear one, if he has kept his pledges before the world, I do not inquire what his private life may have been.

The most beautiful faces have some ugly in them.