While good ol' Schopi tells the reader in the preface to basically fvck off if he doesn't has a firm grip of Kant, some eastern philosophy and Plato, lol. And of his own little essay about the "Satz des zureichenden Grundes", as one won't understand SHIT without it. But I guess nowadays, with all the free and easy accessible information we have, some basic understanding of Kant and Plato through a wholesome YouTube-video should be enough to get where he is coming from.
