In business, we often say that your best customers are the customers you have now. In other words, your most successful sales leads come from the selling you've already done.
Keith FerrazziUltimately, everyone has to ask himself or herself how they're going to fail. We all do, you know, so let's get that out of the way. The choice isn't between success and failure; it's between choosing risk and striving for greatness, or risking nothing and being certain of mediocrity.
Keith Ferrazzi