To prove this, this paper analyses the cognitive and psychological f actors leading to the indeterminacy of natural language and provides evidences b y means of reviewing the researches on meaning in the field of philosophy of lan guage and logic.

Definition of translation should be reportative rather than stipulative, and should be made so tolerating as to encompassing the works of such men as Lin Shu and FitzGerald, thus leaving those criteria with their talks about "exactness","completeness","equivalence" and "closeness" impertinent.