It is thus necessary to examine all things according to their essence, to infer from every species such true and well established propositions as may assist us in the solution of metaphysical problems.
因此，有必要根据事物的本质来考察一切事物，从每一个物种中推断出那些可能有助于我们解决形而上学问题的正确而确定的命题。
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Problem