An excerpt from Isabel Wilkerson’s just-released Caste: The Origins of our Discontents.

Like other old houses, America has an unseen skeleton, a caste system that is as central to its operation as are the studs and joists that we cannot see in the physical buildings we call home. Caste is the infrastructure of our divisions. It is the architecture of human hierarchy, the subconscious code of instructions for maintaining, in our case, a four-hundred-year-old social order. Looking at caste is like holding the country’s x-ray up to the light…

…Caste is insidious and therefore powerful because it is not hatred, it is not necessarily personal. It is the worn grooves of comforting routines and unthinking expectations, patterns of a social order that have been in place for so long that it looks like the natural order of things.