The person who failed often knows how to avoid future failures. The person who knows only success can be more oblivious to all the pitfalls.
Randy PauschCoach Graham rode you pretty hard, didn't he?" he said. I could barely muster a "yeah." That's a good thing," the assistant told me. When you're screwing up and nobody says anything to you anymore, it means they've given up on you.
Randy Pausch