Knowledge@Wharton interviews Sunil Bharti Mittal, who started in business more than 30 years ago with $1,500 borrowed to make bicycle crankshafts. Today, he heads the $5 billion Bharti Group, whose flagship company, Bharti Airtel, is India's largest mobile phone operator. Mittal spoke on lessons learned from his experience, including the emphasis on speed as a strategy.

If you're caught between speed and perfection, always choose speed, and perfection will follow. You never wait for perfect positioning, because in business you don't have the time; especially if you're small, you can't do it.

Thanks to AK for the link.