Johnny Cash was an American singer-songwriter, guitarist, actor, and author. He is one of the best-selling music artists of all time, having sold more than 90 million records worldwide.
"You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes, but you don't dwell on it. You don't let it have any of your energy, or any of your time, or any of your space."