Ignorance is essential to life as we know it. Foreknowledge of the future would preclude choice, responsibility, individuality—even history. True knowledge of the past would obviate historiography. Without human ignorance of God's larger plan, His omnipotence and benevolence would not make sense, given the evils of the world. Full knowledge is the enemy of both intimate and impersonal relationships; for that matter, even less important personal decisions are made in ignorance. Military strategy and natural science both depend on ignorance, as (...) do the law and politics—especially inasmuch as the latter requires myths that divide the world into good and evil forces. (shrink)

I would like to take this opportunity to express my thanks to colleagues whose suggestions have been essential: Karl S. Bottigheimer, Pierre H. Boulle, L. Perry Curtis, Arnold Esch, Marjorie M. Farrar, John R. Gillis, James Joll, Richard F. Kuisel, Alan Lawson, Philip T. Nicholson, James J. Sheehan, Robert Young.