“ For it is not so graceful to do a friend a service, as disgraceful to refuse to do so at his request; and not to revenge oneself on an enemy when opportunity offers is generous. ”
 Plutarch, Moralia (c. 100 AD). copy citation

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“For Socrates put up with Xanthippe, a passionate and forward woman, which made him a more easy companion with others, as being accustomed to submit to her caprices; and it is far better to train and accustom the temper to bear quietly the insults and rages and jeers and taunts of enemies and estranged persons, and not to be distressed at it.
§ ix. Thus then must we exhibit in our enmities meekness and forbearance, and in our friendships still more simplicity and magnanimity and kindness. For it is not so graceful to do a friend a service, as disgraceful to refuse to do so at his request; and not to revenge oneself on an enemy when opportunity offers is generous. But the man who sympathizes with his enemy in affliction, and assists him in distress, and readily holds out a helping hand to his children and family and their fortunes when in a low condition, whoever does not admire such a man for his humanity, and praise his benevolence,
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