But while doing that I'd been following a variety of fields in science and technology, including the work in molecular biology, genetic engineering, and so forth.

In thinking about nanotechnology today, what's most important is understanding where it leads, what nanotechnology will look like after we reach the assembler breakthrough.

The really big difference is that what you make with a molecular machine can be completely precise, down to the tiniest degree of detail that can exist in the world.

On the molecular scale, you find it's reasonable to have a machine that does a million steps per second, a mechanical system that works at computer speeds.

And that because the moving parts are a million times smaller than the ones we're familiar with, they move a million times faster, just as a smaller tuning fork produces a higher pitch than a large one.

Protein engineering is a technology of molecular machines - of molecular machines that are part of replicators - and so it comes from an area that already raises some of the issues that nanotechnology will raise.

Today we have big, crude instruments guided by intelligent surgeons, and we have little, stupid molecules of drugs that get dumped into the body, diffuse around and interfere with things as best they can. At present, medicine is unable to heal anything.

After realizing that we would eventually be able to build molecular machines that could arrange atoms to form virtually any pattern that we wanted, I saw that an awful lot of consequences followed from that.

You can find academic and industrial groups doing some relevant work, but there isn't a focus on building complex molecular systems. In that respect, Japan is first, Europe is second, and we're third.

It's a lot easier to see, at least in some cases, what the long-term limits of the possible will be, because they depend on natural law. But it's much harder to see just what path we will follow in heading toward those limits.

The other advantage is that in conventional manufacturing processes, it takes a long time for a factory to produce an amount of product equal to its own weight. With molecular machines, the time required would be something more like a minute.

Likewise nanotechnology will, once it gets under way, depend on the tools we have then and our ability to use them, and not on the steps that got us there.

But if we can manage it so people don't have things forced on them that they don't want, I think there's every reason to believe things can settle out in a situation that is recognizably better than the one we're stuck in today.

My work at MIT had focused on what we could build in space once we had inexpensive space transportation and industrial facilities in orbit. And this led to various sorts of work in space development.

My greatest concern is that the emergence of this technology without the appropriate public attention and international controls could lead to an unstable arms race.

If you take all the factories in the world today, they could make all the parts necessary to build more factories like themselves. So, in a sense, we have a self-replicating industrial system today, but it would take a tremendous effort to copy what we already have.

I've encountered a lot of people who sound like critics but very few who have substantive criticisms. There is a lot of skepticism, but it seems to be more a matter of inertia than it is of people having some real reason for thinking something else.

But while doing that I'd been following a variety of fields in science and technology, including the work in molecular biology, genetic engineering, and so forth.

An international race in the relevant technologies is getting under way at this point, not necessarily with an understanding of where that race leads in the long run, but strongly motivated by the short-term payoffs.

The basic parts, the start-up molecules, can be supplied in abundance and don't have to be made by some elaborate process. That immediately makes things simpler.

Any powerful technology can be abused.

I had been impressed by the fact that biological systems were based on molecular machines and that we were learning to design and build these sorts of things.

In a sense, artificial intelligence will be the ultimate tool because it will help us build all possible tools.

I like engineering, but I love the creative input.

Scientists at MIT and engineering schools all across America say that they could improve the fuel economy standards for the existing set of vehicles by 10 miles per gallon using existing technology, without compromising safety or comfort at all.

The cloning of humans is on most of the lists of things to worry about from Science, along with behaviour control, genetic engineering, transplanted heads, computer poetry and the unrestrained growth of plastic flowers.

Today, over half of China's undergraduate degrees are in math, science technology and engineering, yet only 16 percent of America's undergraduates pursue these schools.

In these highways our engineering will reflect the National Socialist movement.

My father was a professor of civil engineering at MIT, and my mother taught high school English.

One man's "magic" is another man's engineering. "Supernatural" is a null word.

Business is not just doing deals; business is having great products, doing great engineering, and providing tremendous service to customers. Finally, business is a cobweb of human relationships.

Another thing that was unique about working on this stuff was that I was engineering it. I used many of the things I had learned while I was away from the band. It sort of vindicated my decision to leave in '87.

For decades engineers have stood accused that their buildings do not have any cultural value. We have attempted to liberate engineering of this accusation.

I suppose the reason I chose electrical engineering was because I had always been interested in electricity, involving myself in such projects as building radios from the time I was a child.

I wanted to further my education, so I went on to get a Ph.D. in electrical engineering and came back and served about ten years in the Canadian Navy as what we call a combat systems engineer.

I don't really like to talk specifically about customers by name - but we work with nearly all the leading manufacturers of consumer products worldwide and at quite a detailed engineering level.

From here, it becomes an engineering problem; the engineer considers the ground motion that will occur and evaluates the requirements of the proposed structure in the light of the local foundation conditions.

But I decided I wanted more education and I had to make a choice between starting law school, which was interesting to me, and going for a graduate degree in engineering.

I received my undergraduate degree in engineering in 1939 and a Master of Science degree in mathematical physics in 1941 at Steven Institute of Technology.

I was in school studying civil engineering. A guy approached me on the street and said that I had a interesting look-very exotic. He told me I should try to be in the industry.

You see, my ambition was not to confound the engineering world but simply to create a beautiful piece of art.

The same undisciplined government spending and social engineering that has undermined our economy over the past 30 years has also been tearing at the social fabric of this land.

I'm quite into the idea of engineering being beautiful.

We may simply not be wise enough to do some of the kinds of engineering things that people are talking about doing.

Protein engineering is a technology of molecular machines - of molecular machines that are part of replicators - and so it comes from an area that already raises some of the issues that nanotechnology will raise.

I suspect any worries about genetic engineering may be unnecessary. Genetic mutations have always happened naturally, anyway.

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 human foot is a masterpiece of engineering and a work of art.

I was always fascinated by engineering. Maybe it was an attempt maybe to get my father's respect or interest, or maybe it was just a genetic love of technology, but I was always trying to build things.