9/11 was a genuine trauma, and President George W. Bush rallied the country. I think the Iraq war was ill-considered, but there - it was done in the wake of a national trauma. And that the errors made under such circumstances are different than errors made in the cold.

The Russians are using the tools at their disposal to weaken Western solidarity, to create doubt, to support nationalist parties, just as the old Soviets supported leftist parties. We need a united Western response to this multi-pronged threat.

America's security and prosperity didn't work unless other nations were also secure, and prosperous. There had to be something in it for them, so we weren't looking simply to grab territory, or widen our sphere of influence, or anything like that. We wanted to make the world a better place, and get very rich in the process.

Be careful about a policy generated with enthusiasm in the rush of a moment. It usually doesn't turn out well.

Don't mistake the Russia you want to exist for the Russia that there actually is. Be realistic.

It was my honor to have done what I could do to help. I learned to never underestimate the possibility of change, that values have power and that time and patience can pay off, especially if you`re serious about your objectives.

Putinsim is not necessarily the end state for Russia. Russia has moved in many directions since the early 1980s.