"There's no insecurity about my songwriting. I start a lot more songs than I finish, because I realize when I get into them, they're no good. I don't throw them away, I just put them away, store them, get them out of sight."

"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."

Good stuff from Johnny Cash.