Hope is the bedrock of this nation. The belief that our destiny will not be written for us, but by us, by all those men and women who are not content to settle for the world as it is, who have the courage to remake the world as it should be.

But what I would say to my successor is that it is important not just to shoot but to aim. And it is important, in this seat, to make sure that you're making your best judgments based on data, intelligence, the information that's coming from your commanders and folks on the ground and you're not being swayed by politics.

I think perhaps education doesn’t do us much good unless it is mixed with sweat.

Rather take that moral sense and apply it to the particulars of a job that is going to test those ethical and moral precepts differently than if you're a professor, or a business person, or a dad. And if I were not comfortable with the judicious use of our military to protect the American people, than I shouldn't have run for president. And having said that, I do think that the wisdom of a [Martin Luther] King or a [Mahatma] Gandhi can inform my decisions.

Our government shouldn't make promises we cannot keep, but we must keep the promises we've already made.

I think it's important to realize that I was actually black before the election.

It's also wonderful to be back with my great friend and ally, Chancellor [Angela] Merkel. As I reflect back over the last eight years, I could not ask for a steadier or more reliable partner on the world stage, often through some very challenging times.