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.

History is the memory of States.

What political leaders decide, intelligence services tend to seek to justify.

One of the hardest things for the president is to distinguish the routine issues that come through from the essential issues that affect the long term, and not to let himself get sucked into the battles of the bureaucracy for marginal issues, and to keep them focused and to keep his mind clear on what the fundamental things are that he has to accomplish.

Accept everything about yourself - I mean everything, You are you and that is the beginning and the end - no apologies, no regrets.

The first reactions are often instinctive. So one of the first things we said was that the Chinese had no right to inspect the plane, and that we had a sovereign right to. I don't know what the legal position is, but it was surely psychologically absolutely the unwise thing to do.

Behind the slogans lay an intellectual vacuum.