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.

Popular revolt against a ruthless, experienced modern dictatorship, which enjoys a monopoly over weapons and communications, ... is simply not a possibility in the modern age.

It is obviously easier, for the short run, to draw cheap labor from adjacent pools of poverty...than to find it among one's own people. And to the millions of such prospective immigrants from poverty to prosperity, there is, rightly or wrongly, no place that looks more attractive than the United States. Given its head, and subject to no restrictions, this pressure will find its termination only when the levels of overpopulation and poverty in the United States are equal to those of the countries from which these people are now so anxious to escape.

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.

...there is an optimal balance, depending on the manner of man's life, between the density of human population and the tolerances of nature. This balance, in the case of the United States would seem to me to have been surpassed when the American population reached, at a very maximum, two hundred million people, and perhaps a good deal less.

Do people ever reflect, one wonders, that the best way to protect against the penetration of one's secrets by others is to have the minimum of secrets to conceal?

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