[The comment brings Dust up short, because it hits right to something he'd felt once and remembered very keenly indeed.]

Sometimes you do everything you can, everything you're supposed to... and it still doesn't work out. That's just -- life. Sometimes things aren't possible. But one failure, or even a dozen or a hundred, doesn't mean anything. It's what you do that counts. Don't be blind to what you've done, what you were trying to do, and why.