This is a big world. Billions - rapidly increasing billions - of people live outside our borders. Obviously, a great number of them, being much poorer than they think most of us are, look enviously over those borders and would like, if they could, to come here.

A guest of one's time and not a member of the household.

It is an undeniable privilege of every man to prove himself right in the thesis that the world is his enemy; for if he reiterates it frequently enough and makes it the background of his conduct he is bound eventually to be right.

The best thing we can do if we want the Russians to let us be Americans is to let the Russians be Russian.

Were the Soviet Union to sink tomorrow under the waters of the ocean, the American military-industrial establishment would have to go on, substantially unchanged, until some other adversary could be invented. Anything else would be an unacceptable shock to the American economy.

There is more respect to be won in the opinion of this world by a resolute and courageous liquidation of unsound positions than by the most stubborn pursuit of extravagant or unpromising objectives.

War has a momentum of its own and it carries you away from all thoughtful intentions when you get into it. Today, if we went into Iraq, like the president would like us to do, you know where you begin. You never know where you are going to end.