"At the bottom of enmity between strangers lies indifference" — Søren Aabye Kierkegaard

He that deserves nothing should be content with anything

Never interrupt your enemy when he is making a mistake

You must, therefore, live with your enemies, as you cannot always live with your friends

A wise man gets more use from his enemies than a fool from his friends

The anvil is not afraid of the hammer.

Practice conquers the habit of doing, without reflecting on the rule.

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