The real power here isn't about blind persistence—it's about recognizing that the moment you quit is precisely when your previous effort becomes waste rather than investment. Lombardi coached teams that were genuinely *allowed* to lose games; what he demanded was that they never surrender their standards or abandon the work that made winning possible in the first place. A surgeon doesn't quit mid-operation when complications arise, but neither does she stubbornly refuse to change techniques when the patient's condition demands it. The distinction matters: quitting is about abandoning your commitment, while finishing—even through difficulty—is about keeping faith with what you've already built.