Peers may not be enemy. We should keep learning from each other and learn the advantage from them, then we can achieve greater progress!

同行并不一定是冤家，我们应该保持着互相学习的心态，海纳各家所长，才能获得更大的进步！

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We throw our city open to the world and never exclude foreigners from any opportunity of learning and observing even though the eyes of an enemy may profit from our liberality " Pericles boasts once again.

我们的城邦向世界敞开大门,且从不排除让外国人,向我们学习及观摩的机会,就算敌人可能因此,从我们的慷慨中受益“，伯里克利斯再次自夸。

耶鲁公开课 - 政治哲学导论课程节选