There's nothing wrong with knowing what you want and going after it.

Our constitutional democracy demands our participation, all the time.

Where we have a different background [with Hillary Clinton] on this issue is we differ on the war in Iraq, which created barbaric organizations like ISIS.

The nuclear arsenal that Pakistan has, I believe is secure. I think the government and the military have taken adequate steps to protect that.

Part of diplomacy, the hard work of diplomacy is trying to extract whatever concessions you can get, and giving something the other side wants. Of course you've got to try to make peace with, and work with those who are your adversaries, but you don't just rush in, open the door, and say, "Here I am. Let's talk and make a deal."

Every day, no matter what is happening around me, I consciously try to discipline my own feelings and my mind about what I have to be grateful for, because by any stretch of the imagination - even during the worst times when people are accusing me of things and doing all that they do - I'm a very lucky person.

Like the railroads that brought us together in the 19th century, these trails will bring us together in the 20th and 21st centuries. (at launch of the National Millennium Trails Program, 1999)