Clearly, there are many places where diesel is king or gas-turbine is king, or IC engines will win, but there are many places in the world where, as we've seen, they just won't do the job. The modern version of the Stirling engine has some very, very attractive characteristics, and we're trying to optimize it for some of those applications.

Invention and entrepreneurship isn't about pure technology. Most people take whatever they see in front of them and relate it to something they understand. For at least ten years after Ford started building cars, people called them horseless carriages. It wasn't obvious to call it a car. They used to call the radio 'the wireless.' Innovation is much more about changing people and their perceptions and their attitudes and their willingness to accept change than it is about physics and engineering.

Most of the time you will fail, but you will also occasionally succeed. Those occasional successes make all the hard work and sacrifice worthwhile.

People take the longest possible paths, digress to numerous dead ends, and make all kinds of mistakes. Then historians come along and write summaries of this messy, nonlinear process and make it appear like a simple, straight line.

Nothing that has value, real value, has no cost. Not freedom, not food, not shelter, not healthcare.

Americans thinking that America will continue to lead the world in innovation and quality of life without some quick and serious educational improvements are dangerously delusional.

In the culture of America, in a free culture, you get what you celebrate. And in this culture, we have two obsessions, become a group that becomes a group that celebrates sports heroes and entertainment heroes. There's no room left for kids to see even a little bit of the opportunities to really, really get excited about becoming an inventor, an engineer, or a scientist, a problem solver.