年青人这样受到邀请，就把她们打量了一阵，想作一番鉴别；但是，他见这一群姑娘全是新面孔，就感到不能很好地应用他的鉴别力了。

The young man, thus invited, glanced them over, and attempted some discrimination; but, as the group were all so new to him, he could not very well exercise it.

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他是在给一群难对付的同级们作演讲(虽然不是等级关系)，他若想推动一项议程向前，就需要把说服和事实巧妙结合。

He's addressing a group of rough equals (who nonetheless form a hierarchy), he wants to move an agenda forward, and to do so he has to combine suasion and truth in a delicate mixture.

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其中一幅描绘的是两位优雅的妇女领着一群喧闹的孩子（见上图），是透视技巧的杰出代表作。

One of those paintings, in which two elegant women preside over a roomful of boisterous children, is a masterful exercise in illusionistic technique.

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Even the Platonic just city will have to cultivate warrior citizens who are prepared to risk life in battle for the sake of their own city.

就算是柏拉图式的正义之城,也都还需要培养战士,一群准备好以生命作赌注,来捍卫其所属城市的公民。

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