If genius is 99 percent perspiration (and 1 percent inspiration), then entrepreneurs surely walk the fine line that separates the Einsteins of the world from those poor sweaty souls who practice yoga in saunas. The archetypal startup is the lone inventor in a basement pursuing his or her passion with relentless energy. Somewhere between the original spark of genius and a successfully profitable enterprise, though, lies a maturation process that pits the inventor's vision against the cold and cynical outlook of the business world. Often the 1 percent-a deep and highly individual creative desire-gets lost amid the desire to look and feel like a "real" company. But it is quirky proclivities combined with the sweat that creates the innovations around which successful businesses are formed.

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