Arthur C. Danto argues in his Nietzsche as Philosopher. An Original Study that in philosophy there "is no such thing as an isolated solution to an isolated problem. The problems of philosophy are so interconnected that the philosopher cannot solve, or start to solve, one of them without implicitly committing himself to solutions for all the rest. In a genuine sense, every philosophical problem must be solved at once. He may work piecemeal at isolated problems only insofar as he accepts, if only tacitly, a system within which to conduct his inquiries." Nietzsche had difficulties with this, but "the fact remains ... that philosophy as such is architectonic" (24).
I'd like to believe that this is false.