The duality
As an example of the fourfoldness, I will give the work of Schopenhauer "On the fourfold root of the law of sufficient basis." With numerals larger than four, the design does not survive for the same reason that in primitive languages there are no numerals larger than 10: there is no need. Formally, you can construct a fifth and a tenth and use it. Occasionalism will come out, but it will not spread and will not be consolidated, because the language does not need such words.