Success is the ability to go from one failure to another with no loss of enthusiasm.

The line reframes “success” as a psychological and moral capacity rather than a record of uninterrupted wins. It suggests that setbacks are not disqualifying; what matters is sustaining energy, purpose, and forward motion despite repeated disappointments. The emphasis on “no loss of enthusiasm” highlights resilience as an active stance—choosing to keep trying, learning, and adapting instead of becoming cynical or inert. Read this way, the quote functions as a critique of perfectionism and a defense of perseverance: achievement is often the cumulative result of many failed attempts, and the decisive factor is whether one’s spirit remains intact enough to continue.