It was in the recognition that there is in each man a final essence, that is to say an immortal soul which only God can judge, that a limit was set upon the dominion of men over men.

To understand is not only to pardon, but in the end to love.

Ages when custom is unsettled are necessarily ages of prophecy. The moralist cannot teach what is revealed; he must reveal what can be taught. He has to seek insight rather than to preach.

True opinions can prevail only if the facts to which they refer are known; if they are not known, false ideas are just as effective as true ones, if not a little more effective.

An alliance is like a chain. It is not made stronger by adding weak links to it. A great power like the United States gains no advantage and it loses prestige by offering, indeed peddling, its alliances to all and sundry. An alliance should be hard diplomatic currency, valuable and hard to get, and not inflationary paper from the mimeograph machine in the State Department.

There is but one bond of peace that is both permanent and enriching: The increasing knowledge of the world in which experiment occurs.

The essential discovery of maturity has little if anything to do with information about the names, the locations, and the sequence of facts; it is the acquiring of a different sense of life, a different kind of intuition about the nature of things.