Adolfo Gutierrez

“It’s the person who has done enough preparation, who has developed enough competence, and who then decides to feel totally certain about that level of competence, whatever that level may be, who has the best chance of bringing home that A grade or making the team. So how do you know if you’ve done enough? Simple: if you can perform the sport skills consistently in practice, or play the tough part of the piano recital alone in your home, or answer all the practice test problems when you’re with your study group, then you’ve probably done enough.”
― Nate Zinsser, The Confident Mind: A Battle-Tested Guide to Unshakable Performance