The purposeful is the purpose of the object in practical terms.

目的性“是从实际应用角度来说的。

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But rather that he is enormously clever, that he can use speech to achieve practical ends just as he uses strength and power, and all those other things.

更是指他非常聪明,他可以用演说来达到实际的目的,就像他使用力量,权力,以及所有其他的品质来达到目的一样

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