Should've added that, thanks. It means more than just "as", it also means "in the capacity of", for which there's in my opinion no good english substitute. It c

Should've added that, thanks. It means more than just "as", it also means "in the capacity of", for which there's in my opinion no good english substitute. It comes from Aristotle (https://plato.stanford.edu/entries/aristotle-mathematics/#7.4 https://plato.stanford.edu/entries/aristotle-mathematics/#7....), but there are also somewhat similar strains of thought in confucianism, usually in a more prescriptive manner (how to be an X to a Y).