“How cruel it is not to allow men to strive for the things which seem to them suitable to their natures and profitable! Yet in a way you are not allowing them to do this, when you are vexed because they do wrong. For they are certainly moved to do things they suppose to be suitable to their natures and profitable to them. ‘But it is not so.’ Teach them then, and show them without being angry.”
Marcus Aurelius, Meditations, Ch. 6, para. 27, trans. by George Long.
This struck me as pertinent to the present atmosphere of intolerance of certain political views, even to the point of violence and destruction; though the anger certainly arises on both sides.