A diamond is a chunk of coal that is made good under pressure.

The key decision for a statesman is whether to commit his nation or not. There is no middle course. Once a great nation commits itself, it must prevail. It will acquire no kudos for translating its inner doubts into hesitation.

If the six-nation forums dealing with Iran and North Korea suffer comparable failures, the consequence will be a world of unchecked proliferation, not controlled by either governing principles or functioning institutions. A modern, strong, peaceful Iran could become a pillar of stability and progress in the region. This cannot happen unless Iran's leaders decide whether they are representing a cause or a nation - whether their basic motivation is crusading or international cooperation. The goal of the diplomacy of the Six should be to oblige Iran to confront this choice.

No, [the U.S.] has made it clear that we consider a peaceful resolution an essential aspect of American foreign policy. This I believe to be a situation understood by China, but again, it is important to not sound too truculent. Taking on a billion-plus Chinese is not an enterprise which one should enter lightly.

When I became security advisor, I became familiar with the so-called SIOP war plans, I called in Secretary McNamara and asked him what they were hiding from me, because I couldn't believe that the National policy would foresee such a level of destructiveness.

We must learn to distinguish morality from moralizing.

We cannot give Russia veto over deployment of forces on NATO territory. But we have to understand their particular sensitivities, and, therefore, there should be a dialogue on these issues.