When contradicting the behaviorist ideology, Chomsky develops his theory to the other extreme by confining the language system within narrow limits and underestimating the function of environments in language acquisition.

• 乔姆斯基将语言当作一个封闭自足的体系来研究，将儿童语言习得过程中的社会环境作用搁置一边，未免有些偏激。