At Meno 87b-c,1¹ and again in the Protagoras,2² Socrates3³ commits himself to the biconditional that all knowledge,4⁴ and only knowledge, is teachable:

中文翻译：

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知识是可教的

在 Meno 87b-c,1 ¹和 Protagoras,2 ²苏格拉底^{3 3}再次承诺所有知识 4 ⁴并且只有知识是可教的双条件：