For the sake of our children and our future, we must do more to combat climate change. Now, it's true that no single event makes a trend. But the fact is the 12 hottest years on record have all come in the last 15. Heat waves, droughts, wildfires, floods-all are now more frequent and more intense. We can choose to believe that Superstorm Sandy, and the most severe drought in decades, and the worst wildfires some states have ever seen were all just a freak coincidence. Or we can choose to believe in the overwhelming judgment of science-and act before it's too late.

Angela Merkel has been an extraordinary partner for me and for the United States throughout my presidency.

Before we get too depressed about the state of our politics, let's remember our history ..... Many forms of Government have been tried, and will be tried in this world of sin and woe. What is amazing, is that despite all the conflict, our experiment in democracy has worked better than any form of government on earth

Sometimes slow, steady effort is rewarded with justice that arrives like a thunderbolt.

We need fathers to step up, to realize that their job does not end at conception; that what makes you a man is not the ability to have a child but the courage to raise one.

There is a theory that basically says that we can shred regulations and consumer protections and give more and more to the most, and somehow prosperity will trickle down. It hasn't worked. And I think that the fundamentals of the economy have to be measured by whether or not the middle class is getting a fair shake.

If you go out and make some things happen, you will fill the world with hope.