Men will learn eventually, and if they insist on rejecting the received wisdom of generations past, they do not thereby succeed at invalidating it; they merely condemn themselves to learning it, time and again, by ever grimmer experience.

Hilaire Belloc (1870-1953) Franco-British writer, historian [Joseph Hilaire Pierre René Belloc]

(Misattributed)
    (Source)

While usually attributed to Belloc, and even further to his essay "The Restoration of Property" (1936), it does not appear in that work, proper. Rather, it is found in the Introduction to the 2002 IHS Press edition the work, signed only by the Directors of the IHS Press.