To avoid dissensions we should be ever on our guard, more especially with those who drive us to argue with them, with those who vex and irritate us, and who say things likely to excite us to anger. When we find ourselves in company with quarrelsome, eccentric individuals, people who openly and unblushingly say the most shocking things, difficult to put up with, we should take refuge in silence, and the wisest plan is not to reply to people whose behavior is so preposterous.
— Saint Ambrose of Milan (339-397)