The question of whether languages shape the way we think
go back centuries; Charlemagne proclaimed that "to have a second
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language is to have a second soul". But the idea went out of favor to
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scientists when Noam Chomsky"s theories of language gained
popularity in the 1960s and 1970s. Dr. Chomsky proposed that
there was a universal grammar for all human languages—essentially,
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that languages don"t really differ from one another in significant
ways. And because languages didn"t differ from one another, the
theory went, it made none sense to ask whether linguistic differences
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led to differences in thinking.
The search for the linguistic universals yielded interesting
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data on languages, and after decades of work, not a single
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proposing universal has withstood scrutiny. Instead, as linguists
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probed deeper into the world"s languages (7,000 or so, only a
fraction of them analyzed), innumerable predictable differences
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emerged.
Of course, just because people talk differently doesn"t
necessarily mean they think differently. In the past decade,
cognitive scientists have begun to measure not just how people talk,
also how they think, asking whether our understanding of even such
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fundamental domains of experience that space, time and causality
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could be constructed by language.