The story

Segway scooter inventor Dean Kamen freely admits it: He often suffers sleepless nights wrestling over whether to quit a project that's not panning out.

"You end up lying there saying, 'I'm not stopping. It would be an act of shallow cowardice. Or you decide to quit and you say, 'This is one of those ideas that just isn't going to work,' " said Kamen, speaking by phone from his home office in Manchester, New Hampshire.

When to quit -- said Kamen, also the inventor of health care technologies and the Slingshot water purifier -- is "the toughest question there is" for any entrepreneur who survives on creativity and instinct. Read full article »

All About Small BusinessStartupsPsychology

Don't Miss