There is a great satisfaction in building good tools for other people to use.

The technologies which have had the most profound effects on human life are usually simple.

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.

The question that will decide our destiny is not whether we shall expand into space. It is: shall we be one species or a million? A million species will not exhaust the ecological niches that are awaiting the arrival of intelligence.

It is characteristic of all deep human problems that they are not to be approached without some humor and some bewilderment.

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.

There is a great satisfaction in building good tools for other people to use.

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?

It's better to get mugged than to live a life of fear.

Aviation is the branch of engineering that is least forgiving of mistakes.

Biology is now bigger than physics, as measured by the size of budgets, by the size of the workforce, or by the output of major discoveries; and biology is likely to remain the biggest part of science through the twenty-first century.

Every orchid or rose or lizard or snake is the work of a dedicated and skilled breeder. There are thousands of people, amateurs and professionals, who devote their lives to this business. Now imagine what will happen when the tools of genetic engineering become accessible to these people.

I don't think of myself predicting things. I'm expressing possibilities. Things that could happen. To a large extent it's a question of how badly people want them to.

I have the freedom to do what I want... bright people to talk to every day.

It has become part of the accepted wisdom to say that the twentieth century was the century of physics and the twenty-first century will be the century of biology.

It's not going to be just humans colonizing space, it's going to be life moving out from the Earth, moving it into its kingdom. And the kingdom of life, of course, is going to be the universe.

Just because you see pictures of glaciers falling into the ocean doesn't mean anything bad is happening. This is something that happens all the time. It's part of the natural cycle of things. We know from measurements that glaciers have been melting for 200 years at least.

Many of the technologies that are now racing ahead most rapidly, replacing human workers in factories and offices with machines, making stockholders richer and workers poorer, are indeed tending to accentuate the existing inequalities in the distribution of wealth.

Successful technologies often begin as hobbies. Jacques Cousteau invented scuba diving because he enjoyed exploring caves. The Wright brothers invented flying as a relief from the monotony of their normal business of selling and repairing bicycles.

The PhD system is the real root of the evil of academic snobbery. People who have PhDs consider themselves a priesthood, and inventors generally don't have PhDs.

The biologists have essentially been pushed aside. Al Gore's just an opportunist. The person who is really responsible for this overestimate of global warming is Jim Hansen. He consistently exaggerates all the dangers.

The climate-studies people who work with models always tend to overestimate their models. They come to believe models are real and forget they are only models.

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

The pain of childbirth is not remembered. It's the child that's remembered.

The purpose of thinking about the future is not to predict it but to raise people's hopes.

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

Younger people have so many opportunities. I don't see any pessimism among them.

Biology is now bigger than physics as measured by the size of budgets by the size of the workforce or by the output of major discoveries and biology is likely to remain the biggest part of science through the twenty first century.

Nothing is boring if you look at carefully.

Climate change is part of the normal order of things and we know it was happening before humans came.

It is not surprising that honest and well informed experts can disagree about facts. But beyond the disagreement about facts there is another deeper disagreement about values.

Sanity is, in essence, nothing more than the ability to live in harmony with nature's laws.

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

We must support initiatives that provide clear, concrete measures and milestones that our troops need for defeating the insurgency, building up Iraqi security forces, and handing over Iraq to the Iraqi people.

In other words, I have no truck for anyone who goes out and does an eclectic building.

We believe that peace is not just signed papers, but rather a contract between generations for the building of a more promising and less threatening future.

Belief in oneself is one of the most important bricks in building any successful venture.

Living at risk is jumping off the cliff and building your wings on the way down.

When I say artist I mean the man who is building things - creating molding the earth - whether it be the plains of the west - or the iron ore of Penn. It's all a big game of construction - some with a brush - some with a shovel - some choose a pen.

Nature is my manifestation of God. I go to nature every day for inspiration in the day's work. I follow in building the principles which nature has used in its domain.

So I rang up a local building firm, I said 'I want a skip outside my house.' He said 'I'm not stopping you.'

We have a group of friends of the museum who try to raise, if they can, periodically something to help us. Of course, the main thing about a building like this is its upkeep. It needs central heating and it needs central air conditioning.

Rather, it is through conciliation and compromise that we are building a fair Iraq, a just state for all its peoples.

For the next century, the Republicans have agreed that we will promote the dignity and future of every individual by building a free society under a limited, accountable government that protects liberty, security and prosperity for a brighter American dream.

I smuggled the camera, it was no problem to smuggle the camera there. And I took 60 photos, two films, during the time when there was no one in the control room, in the building.

Well, by the end of the millennium, five, six months from now, we hope to somehow manage to move into a new location where we have the whole building, so we can devote space to all our activities.

The anger that appears to be building up between the sexes becomes more virulent with every day that passes. And far from women taking the blame... the fact is that men are invariably portrayed as the bad guys. Being a good man is like being a good Nazi.

Building one space station for everyone was and is insane: we should have built a dozen.

There are some who are scared by unity and by building a country on the basis of ideas.