Am I correct to think that learning one's native language greatly is the best

Am I correct to think that learning one's native language greatly is the best

Am I correct to think that learning one's native language greatly is the best method to becoming an intelligent, much thinking person? For it seems to me that words relate one to reality (to the extent that one can become related to reality). As I learn new words each day (I buy books similar to Merriam-Websters Vocabulary Builder and read them daily, among other books), I feel as though they are figuratively unlocking doors to new thoughts that were not accessible by my mind without the words. Is this a fact: one is literally superior in thought (not in an imaginative sense) to one without the words the former knows? Or am I an arrogant charlatan, and think I am better for just knowing some words? Or, better yet, why are words so powerful? Could you please recommend some books that elucidate the answer to my questions?

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