There is the same need of an infallible judge of opinions to decide an opinion to be noxious, as to decide it to be false, unless the opinion condemned has full opportunity of defending itself.

要判定一个意见为有害，与要判定它为谬误，同样需要一个不可能错误的裁判者，除非那被宣判的意见有充分的机会为自己辩护。

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In Russells opinion, logic should be the foundation of mathematics. Then he put forward his topic that mathematics is the same as logic and it can be deoxidized to logic.

他认为，数学的基础应是逻辑，从而提出他的数学逻辑主义论题：数学与逻辑等同，全部数学可以化归为逻辑。

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