Realism is important in foreign policy. You have to be realistic about what you can achieve, and about the pitfalls, and problems along the way, of which there are plenty. Nothing is easy. It's always rough.

America is not a white man's republic.

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.

Nationalism is like cheap alcohol. First it makes you drunk, then it makes you blind, then it kills you.

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

The sense the great democracies of the world - Europe, the United States, Japan, others - are going to set the agenda for the world. [Russians] want to bring that down.

It's said that Putin can't stand Hillary Clinton. I don't know that for a fact, but it certainly looks that way, but I think her approach to Russia stands up pretty well.