The greatest sin on this earth is never fulfilling your potential. Not everyone is meant to be a billionaire or millionaire. But everyone is meant to be as great as they can be. At the end of their lives, everyone is meant to be found conquering mountains. No matter if you are 18 or 81, full your tank every morning, and don't come back until it's empty, and then do it again tomorrow.
Be above the average, the mediocre, and the content. Continue to strive for more. Do extraordinary.