Our modes of thinking are influenced (even determined) by language (which is the most signigicant of human cultural developments). In fact, it appears likely that language developed in conjunction with man's biological evolution from non-human homonids to homo sapiens. As proto languages developed, they probably had adaptive advantages, so larger, more complex frontal lobes in the human brain evolved. (i.e Those homonids with a greater capacity for language survived better and left more descendants than those with a lesser capacity.) Without the cultural development of language, human biological evolution might have been quite different. (Of course we don't know the exact sequence of these events - it's speculative. However the fossil record definitely shows dramatic increases in the size of the frontal area of the brain when humans evolved from other homonids.)
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I see this quote from John 1 as a metaphor for the "creation" of humans. "God" represents "culture". Culture, after all, is "supernatural" (i.e. meta-biological or "artificial").In the beginning was the Word, and the Word was with God, and the Word was God.
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The role of language in determining thought is still controversial (the Chomskyites tend to see language as biologically determined. as opposed to the Sapir-Whorf adherents.) There can be no doubt, however, that human knowledge (including, but not limited to, scientific knowledge) is gained through reading (or listening to lectures). Most of what we "know" is therefore "culturaly determined".