but because he ignores Whorf's use of scare quotes around the word "time" and the qualifier "what we call," takes Whorf to be arguing that the Hopi have no concept of time at all. Today many followers of the universalist school of thought still oppose linguistic relativity. For example, Pinker argues in The Language Instinct that thought is independent of language, that language is itself meaningless in any fundamental way to human thought, and that human beings do not even think in "natural" language, i.e. any language that we actually communicate in; rather, we think in a meta-language, preceding any natural language, called "mentalese." Pinker attacks what he calls "Whorf's radical position," declaring, "the more you examine Whorf's arguments, the less sense they make." Pinker and other universalists have been accused by relativists of misrepresenting Whorf's views and arguing against strawmen. Cognitive linguistics In the late 1980s and early 1990s, advances in cognitive psychology and cognitive linguistics renewed interest in the Sapir–Whorf hypothesis. One of those who adopted a more Whorfian approach was George Lakoff. He argued that language is often used metaphorically and that languages use different cultural metaphors that reveal something about how speakers of that language think. For example, English employs conceptual metaphors likening time with money, so that time can be saved and spent and invested, whereas other languages do not talk about time in that way. Other such metaphors are common to many languages because they are based on general human experience, for example, metaphors associating up with good and bad with down. Lakoff also argued that metaphor plays an important part in political debates such as the "right to life" or the "right to choose"; or "illegal aliens" or "undocumented workers". Parameters In his book Women, Fire and Dangerous Things: What Categories Reveal About the Mind, Lakoff reappraised linguistic relativity and especially Whorf's views about how linguistic categorization reflects and/or influences mental categories. He concluded that the debate had been confused. He described four parameters on which researchers differed in their opinions about what constitutes linguistic relativity: The degree and depth of linguistic relativity. Perhaps a few examples of superficial differences in language and associated behavior are enough to demonstrate the existence of linguistic relativity. Alternatively, perhaps only deep differences that permeate the linguistic and cultural system suffice. Whether conceptual systems are absolute or whether they can evolve Whether the similarity criterion is translatability