Whenever you think God has shown you other people’s faults, take care; your own judgment may well be at fault. Say nothing. And if you do attribute any vice to another person, immediately and humbly look for it in yourself also. Should the the other person really possess that vice, he will correct himself so much the better when he sees how gently you understand him, and he will say to himself whatever you would have told him.
— Saint Catherine of Siena