Abstract:
Accuracy and perfection of natural languages is not an essential task of metalanguage in language philosophy. On the contrary, the essential task of metalanguage is to explore the originality of expression and explanation, and the natural language is the original metalanguage. The natural language has interiorly-circulating self-explanation, which calls for an established system of common symbols and rules. And this system of common symbols and rules is obtained by parallelly and universally comparing some bits and pieces of speech, thus non-explanable and non-definable. So a deeper and further study is to be done to establish the system of common symbols and rules.
