Words are also seeds, and when dropped into the invisible spiritual substance, they grow and bring forth after their kind.
You see a lot of smart guys with dumb women, but you hardly ever see a smart woman with a dumb guy.
Indeed, if a chief question does remain: how is the power to think possible? - The power to think right and left, before and without, with and above experience? then it does not take a deduction to prove the genealogical priority of language.