Segway will be to the car what the car was to the horse and buggy.

To me, innovations are the wheel, fire, language, movable type. There are not 3 million innovations; there are 3 million inventions

If you're going to fail, you might as well fail at the big ones.

What really makes it an invention is that someone decides not to change the solution to a known problem, but to change the question.

I do not want to waste any time. And if you are not working on important things, you are wasting time.

If history is any indication, all truths will eventually turn out to be false.

The word entrepreneur is associated with success and adventure. From my life, the only thing I can tell you that's consistently associated with entrepreneurship is failure, and the only thing consistently associated with invention is frustration. There is a long road between the idea and the reality.