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Dean Kamen Offers Advice For Inventors : NPR

Dean Kamen’s inventions range from medical devices, such as a stair-climbing wheelchair, to the much-hyped Segway Personal Transporter. These days, he’s working on new technologies that he hopes will transform the world.

So my long answer to your short question, “what was our best project or our best a-ha moment?”, I hope it hasn’t happened yet. I think young is about looking forward and being optimistic and wondering what’s next. Being old is looking backward and wishing for times gone by, and I hope never to get old.