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Wittgenstein was an Austrian philosopher of mathematics, language, and the mind. He is one of our knowledge heroes, and appears in the BQ lessons to help us explore the relationship between knowledge and language.

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Whorf was an American linguist and engineer. Whorf helped to promote the idea of linguistic determinism. He is one of our knowledge heroes, appearing in the BQ lessons to help us to explore the relationship between knowledge and language.

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Stamper is a lexicographer and former associate editor for Merriam-Webster dictionaries. She is one of our knowledge heroes, appearing in the BQ lessons to help us to explore the difference between prescriptive and descriptive approaches to language.

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Shakespeare was an English playwright, poet, and actor, who is widely regarded as the greatest writer in the English language. He is one of our knowledge heroes, appearing in the BQ lessons to help us to explore how language develops over time.

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Sapir was an American linguist, who was a key figure in the development of linguistic determinism. He is one of our knowledge heroes, appearing in the BQ lessons to help us to explore the relationship between language and knowledge.

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Pinker, a Harvard professor, is one of the best known popular science writers in the world, and his books on psychology have sold millions of copies. He is one of our knowledge heroes, helping us to explore whether we can measure whether society is improving over time.

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Orwell was the author of (among many other things) Animal Farm and 1984. In many ways, he is the ‘patron saint of  TOK’, because of his huge range of ideas on so many different topics. He is one of our knowledge heroes, appearing in the BQ lessons to help us to explore the relationship between language and knowledge.

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McWhorter is an American linguist, and associate professor of English and literature at Columbia University, where he teaches linguistics, American studies, philosophy, and music history. He is one of our knowledge heroes, appearing in the BQ lessons to help us to explore how language is driven forward by technology.

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McKean is an American lexicographer. She is a founder of Reverb, which makes the online dictionary Wordnik. She is one of our knowledge heroes, appearing in the BQ lessons to help us to explore who and what represents authority when it comes to grammar and language.

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Chomsky is an American linguist, philosopher, historian, and activist who focuses on social and political issues. Chomsky is also one of the founders of the field of cognitive science.

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Wittgenstein was an Austrian philosopher of mathematics, language, and the mind. He is one of our knowledge heroes, and appears in the BQ lessons to help us explore the relationship between knowledge and language.