The insight here goes beyond mere cause-and-effect—Churchill is describing a feedback loop that becomes almost invisible over time. We make deliberate choices about architecture (a grand civic hall, a cramped cubicle farm), but then those spaces subtly rewire how we think, what we value, and who we become. A teenager in a library designed with intimate reading nooks will develop differently than one in a cavernous, echoing hall, yet rarely will they recognize the building itself as their tutor. What makes this observation so unsettling is that we're usually convinced our choices and character are purely our own, when the walls around us have been ghosting us all along.