Thomas Sowell, in Society (Nov.-Dec. 1991), Rutgers-The State Univ., New Diversity' Means Brunswick, N.J. 08903.

"Cultural diversity" is frequently invoked today as a shining ideal. Some of its cru- sading advocates, notes Sowell, a Senior Fellow at the Hoover Institution on War, Revolution, and Peace, "seem to want to preserve cultures in their purity, almost like butterflies. . . in amber." That. he points out, is not the way in which, over the centuries, cultures and civilizations a...