"Leave other people's mistakes where they lie." - Marcus Aurelius
When people around me make mistakes, I should not make more of them then what they are, a mistake. Don't point them out, or draw light to them. A mistake is an act of learning, it is when your judgment about something is incorrect and must be corrected. Others mistakes are of no consequence to me. I must maintain my indifference to them. I must not dwell on other peoples mistakes, just as I must not dwell on my own. To leave them where they lie, to treat them with indifference as if they were a stone in the path to be stepped over and never acknowledge thereafter.