“In sports, you simply aren't considered a real champion until you have defended your title successfully. Winning it once can be a fluke; winning it twice proves you are the best.”

“We have a chance to wind down and expedite the removal of 96 percent of the world's nuclear weapons. What an achievement it would be, if at the end of the next administration, we could say that the nuclear arsenals of both Russia and the United States had been reduced to the barest minimums.”