 Windelband provides neither a very detailed account of what “philosophical problems” exactly are, nor of how precisely they spring from the unsettling of everyday concepts. But he makes three claims that, taken together, establish that philosophy, even when reflecting its particular age, is not solely determined by contingent cultural factors. First, philosophical puzzles stem from the “inadequacy and contradictory imbalance” of the contents that philosophy receives from life and science (1891: 10). That is, true philosophical problems emerge whenever the systematizing drive of philosophy is confronted with the deep incoherence of life. Second, philosophical problems are necessary because the conceptual “material” found in life already contains “the objective presuppositions and logical coercions for all rational deliberation about it” (1891: 10). The necessity of philosophical problems is logical necessity. Third, despite historical change 