"Among the urban town-gown themes that Baldwin explores, three stand out. The first is the history of the urban universities profiled to attempt to wall themselves off from the low-income and largely nonwhite populations of the urban cores in which they reside (or have expanded into)."
https://www.insidehighered.com/blogs/learning-innovation/why-i%E2%80%99m-talking-%E2%80%98-shadow-ivory-tower%E2%80%99