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We can learn from past failures and mistakes, but we shouldn't get stuck there. We can keep future goals in mind, but we shouldn't get stuck there, either. The only way to reach our potential is to focus on what we must do now - this moment, this day - to perform effectively and win.

Joe Torre, Henry Dreher (1999). “Joe Torre's ground rules for winners: 12 keys to managing team players, tough bosses, setbacks, and success”, Hyperion Books
We can learn from past failures and mistakes, but we shouldn't get stuck there. We can keep future goals in mind, but we shouldn't get stuck there, either. The only way to reach our potential is to focus on what we must