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To navigate more by instruments, Sapir-Whorf provides the theoretical mechanism:
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The argument that language defines the way a person behaves and thinks has existed since the early 1900′s when Edward Sapir first identified the concept. He believed that language and the thoughts that we have are somehow interwoven, and that all people are equally being affected by the confines of their language. In short, he made all people out to be mental prisoners; unable to think freely because of the restrictions of their vocabularies.
An example of this idea is given in George Orwell’s book 1984, in which he discusses the use of a language entitled “newspeak” which was created to change the way people thought about the government. The new vocabulary they were given was created to control their minds. Since they could not think of things not included in the vocabulary, they were to be zombies imprisoned by the trance of their language. Soon, Sapir had a student, Benjamin Whorf, who picked up on the idea of linguistic determinism and really made it his own. Whorf coined what was once called the Sapir-Whorf hypothesis, which is more properly referred to as the Whorf hypothesis. This states that language is not simply a way of voicing ideas, but is the very thing which shapes those ideas. One cannot think outside the confines of their language. The result of this process is many different world views by speakers of different languages.
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