I've actually been wondering about this a lot myself recently, though I have been thinking of it in terms of "axiomatic English" i.e. the set of words and gramm

I've actually been wondering about this a lot myself recently, though I have been thinking of it in terms of "axiomatic English" i.e. the set of words and grammar/syntax rules from which all other meanings expressible in English can be represented, and cannot be explained themselves except through tautology? It's a really, really interesting question, and answering it would explain a lot about how we actually think.