There have been only 268 of the past 3,421 years free of war.

Inquiry is fatal to certainty.

Sixty years ago I knew everything. Now I know nothing. Education is a progressive discovery of our own ignorance.

In my youth I stressed freedom, and in my old age I stress order. I have made the great discovery that liberty is a product of order.

Civilization begins with order, grows with liberty, and dies with chaos.

The great snare of thought is uncritical acceptance of irrational assumptions.

The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.

War is one of the constants of history, and it has not diminished with civilization or democracy.

The greatest question of our time is not communism vs. individualism, not Europe vs. America, not even the East vs. the West; it is whether men can bear to live without God.

Knowledge is power but only wisdom is liberty.

Can a civilization hold together if man abandons his faith in God?

Liberty is a luxury of security; the free individual is a product and a mark of civilization.

From barbarism to civilization requires a century; from civilization to barbarism needs but a day.

History offers some consolation by reminding us that sin has flourished in every age.

Civilizations come and go; they conquer the earth and crumble into dust; but faith survives every desolation.

It came to me that reform should begin at home, and since that day I have not had time to remake the world.

Education is the transmission of civilization.

History is always repeating itself, but each time the price goes up.

Those who know nothing about history are doomed forever to repeat it.