The principle of linguistic relativity holds that the structure of a language affects the ways in which its speakers conceptualize their world, i.e. their world view, or otherwise influences their cognitive processes. Popularly known as the Sapir–Whorf hypothesis, or Whorfianism, the principle is often defined as having two versions: (i) the strong version that language determines thought and that linguistic categories limit and determine cognitive categories and (ii) the weak version that linguistic categories and usage influence thought and certain kinds of non-linguistic behaviour. The term "Sapir–Whorf Hypothesis" is a misnomer, as Edward Sapir and Benjamin Lee Whorf never co-authored anything, and never stated their ideas in terms of a hypothesis. The distinction between a weak and a strong version of the hypothesis is also a later invention, as Sapir and Whorf never set up such a dichotomy, although often in their writings their views of this relativity principle are phrased in stronger or weaker terms.
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