Passion. The life of an entrepreneur is occasionally exhilarating, and almost always exhausting. Only unbridled passion for the concept is likely to see you through the 17-hour days (month after month) and the painful mistakes that are part and parcel of the start-up process.
Tom PetersBut there's no substitute for getting smarter faster. And the way you get smarter is to screw around vigorously. Try stuff. See what works. See what fails miserably. Learn. Rinse. Repeat.
Tom Peters