“信”作为翻译原则在翻译实践中有两个预设,一个是逻辑原子论的预设,一个是原文和译文二元对立的预设。前者意味着只要原文与译文语词对应,原文的意义即可准确传达。后者意味着译文必须绝对服从于原文。本文从维特根斯坦语言游戏论的观点和培根的“四假相说”出发,从对上述两个预设的探讨入手,对“信”的原则提出了自己的思考。认为意图通过语词对等来准确传递原文意义是难以达到的;翻译不是复制,是阐释,原文与译文是共生关系。 “Letter ” as the principle of translation There are two preconditions in translation practice, one is the presupposition of logical atomism and the other one is the preconception of the binary opposition of the original text and the translated text. The former means that as long as the original and the translated words correspond to the original meaning can be accurately conveyed. The latter means that the translation must absolutely obey the original. This article starts from Wittgenstein’s viewpoints of language games theory and Bacon’s theory of “four falsehoods”, starts with the discussion of the two presuppositions and puts forward his own thinking on the principle of “letter”. It is difficult to achieve the purpose of accurately conveying the meaning of the original text by means of word equivalence. The translation is not a copy, but an explanation. The original text and the translation text are symbiotic relations.