supposing that a philosopher has always in the first place been a recluse — ever expressed his actual and ultimate opinions in books: are not books written precisely to hide what is in us? — indeed, he will doubt whether a philosopher CAN have “ultimate and actual” opinions at all; whether behind every cave in him there is not, and must necessarily be, a still deeper cave: an ampler, stranger, richer world beyond the surface, an abyss behind every bottom, beneath every “foundation.” Every philosophy is a foreground philosophy — this is a recluse’s verdict: “There is something arbitrary in the fact that the PHILOSOPHER came to a stand here, took a retrospect, and looked around; that he HERE laid his spade aside and did not dig any deeper — there is also something suspicious in it.