And another nice post from Life of Light that sort of goes with it:
If you have a fault, consider well before you criticize another. Consider well before you think in a bad way about a friend, family member, spouse, or neighbor.
If you have a fault, you should have a clear picture of how you like others to deal with it, how you want others to deal with you. And you should, without thought, deal with them and their shortcomings in a similar way.
If you cannot do it without thought, at least do it with thought!