So I work at a plumbing company. At the end of the day today, a plumber and his apprentice came in. Apparently the kid screwed up and was feeling down on himself. The plumber said "Listen, the only reason I'm any good at it is because I ran out of ways to [bleep] [bleep] up."
And one from the chef who trained me once upon a time. "I can't teach you how to work. If you know how to work, I can teach you how. But you already have to know how to work."