The idea of linguistic relativism by Sapir and Whorf
The two authors of the early 20th century, Sapir and Whorf, worked on linguistic relativism. Both of them put forward the idea that the languages we use have an influence on our vision of the world. For them, two individuals, who speak different languages, would not have the same reaction, if they are confronted with the same situation.
The two authors therefore admit that language determines thought. In the same way, they also argue that the development of language influences the development of thought. To confirm this theory, Sapir says: “The instrument makes the product possible, the product refines the instrument”.