The World War II generation believed the United States could do anything - anything... And Vietnam was a shattering experience for everyone.

Diplomacy is like jazz: endless variations on a theme.

A peace deal requires agreements, and you don't make agreements with your friends, you make agreements with your enemies.

It's an improvisation on a theme. You know where you want to go, but you don't know how to get there. It's not linear.

I still believe in the possibility of the United States, with all its will and all its strength, and I don't just mean military, persevering against any challenge. I still believe in that.

World War I was not inevitable, as many historians say. It could have been avoided, and it was a diplomatically botched negotiation.

The World War II generation believed the United States could do anything - anything... And Vietnam was a shattering experience for everyone.