It's important to make sure that governments have some checks on what they do, that people can oversee what's being done so the government doesn't abuse it.
Climate change constitutes a serious threat to global security.
You can't always come up with the optimal solution, but you can usually come up with a better solution.
The arc of the moral universe may bend towards justice, but it doesn't bend on its own.
Every country has violent, hateful, or mentally unstable people. What's different is not every country is awash with easily accessible guns.
The opportunity will not remain open indefinitely.
I’m convinced that a world in which girls are educated is a safer, more stable, more prosperous place.
Any time bombs are used to target civilians it is an act of terror.
On every continent, there are girls who will go on to change the world in ways we can only imagine, if only we allow them the freedom to dream.
My administration doesn’t have any secrets, and from now on, neither will you.
I think, as you get older, that's when your ambitions become "peculiar".
Hope - Hope in the face of difficulty. Hope in the face of uncertainty. The audacity of hope!
This victory alone is not the change we seek; it is only the chance for us to make that change.
Sometimes people just feel as if we want to try something to see if we can shake things up.
We may come from different places and have different stories, but we share common hopes, and one very American dream.
My first job is to say thank you to those who voted me. Those who didn't, I'm going to get your vote next time.
Let us remember that we can do these things not just because of wealth or power, but because of who we are: one nation under God, indivisible, with liberty and justice for all.
Focusing your life solely on making a buck shows a poverty of ambition. It asks too little of yourself. And it will leave you unfulfilled.
We reaffirm that on days like this, there are no Republicans or Democrats. We are Americans, united in concern for our fellow citizens.