Walter M. Miller, Jr. Quote

The Simplification had ceased to have plan or purpose soon after it began, and became an insane frenzy of mass murder and destruction such as can occur only when the last traces of social order are gone. The madness was transmitted to the children, taught as they were — not merely to forget — but to hate, and surges of mob fury recurred sporadically even through the fourth generation after the Deluge. By then, the fury was directed not against the learned, for there were none, but against the merely literate.

Ch 6 - A Canticle for Leibowitz (1959) - Fiat Homo