In Our Time fleshes out an interesting bit of the collective episteme this week. MM-P, like the rest of the phenomenology-based folks (who were actually my own gateway to understanding the truth in these philosophical claims, even after scattered graduate coursework) rely on the legitimacy of Kant's transcendent encounter with the world, and there is a rift at the heart of that story -- in fairness, well painted-over by those with a bit of Kant in their ruck.
Live nobly.