You should tell the Cambodians (i.e., Khmer Rouge) that we will be friends with them. They are murderous thugs, but we won't let that stand in the wa… - Henry Kissinger

The Metternich system had been inspired by the eighteenth century notion of the universe as a great clockwork: Its parts were intricately intermeshed, and a disturbance of one upset the equilibrium of the others. Bismarck represented a new age. Equilibrium was seen not as harmony and mechanical balance, but as a statistical balance of forces in flux. Its appropriate philosophy was Darwin's concept of the survival of the fittest. Bismarck marked the change from the rationalist to the empiricist conception of politics.... Bismarck declared the relativity of all beliefs; he translated them into forces to be evaluated in terms of the power they could generate.

In my dual role of National Security Adviser and Secretary of State, my constant nightmare as Watergate accelerated was that, sooner or later, some foreign adversary might be tempted to test what remained of Nixon's authority and discover that the emperor had no clothes. Probably the greatest service rendered by the Nixon Administration in those strange and turbulent final months was to have prevented any such overt challenge. For even as it approached dissolution, the Nixon Administration managed to navigate the Arab-Israeli War of 1973, diminish the Soviet position in the Middle East by sponsoring two disengagement agreements, and conduct successfully a complicated triangular diplomacy with Moscow and Beijing.

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.