Educators negotiate between two related but distinct demands: (1) the need to preserve knowledge and (2) the need to prepare students to apply knowledge. While complementary in education, the two are not necessarily closely linked. In the United States, they have become distant from each other at all levels of intellectual labor. I have been circling this issue, not quite making progress until I found myself talking about Thomas Kuhn over on the Archdruid Report. There is a way to frame the issue historically in reference to the Enlightenment that clarifies the basis for the present-day disjoint between these two demands. I want to talk through that in the hopes that better grasping that provides us with some insight into fixing the disjunction today.