If Tehran insists on combining the Persian imperial tradition with contemporary Islamic fervor, then a collision with America — and, indeed, with its… - Henry Kissinger

I was intellectually convinced that Hanoi would settle only if deprived of all hope of victory by a determined military strategy. But I was emotionally close to many of the more moderate of the protesters who had been my contemporaries at university; therefore I was also the principal advocate in the administration for negotiations for a political solution to give the people of Indochina a genuine opportunity to choose this future. It turned out to be a rough ride, rougher by far than I imagined when I started on the task. Since then, the categories of our national debate on Vietnam have remained largely unchanged, compounded with the passage of time by an amnesia that suppresses events but remembers encrusted hatreds. A balanced judgment on Vietnam continues to elude us - and therefore the ability to draw lessons from a national tragedy which America inflicted on itself.

I was working for Kennedy in those days, and [<nowiki/>Truman] said what I had learned from Kennedy, and I said, "I've learned that the president can't do everything he wants because the bureaucracy is the fourth branch of government." ... He said, "The trouble with Kennedy is he has too many opinions. A president has to know what he wants to do."

The study of history offers no manual of instructions that can be applied automatically; history teaches by analogy, shedding light on the likely consequences of comparable situations.