Don't misunderestimate me. . . .

Fool me once, shame on - shame on you. Fool me - you can't get fooled again.

Leadership to me means duty, honor, country. It means character, and it means listening from time to time.

Terrorist attacks can shake the foundations of our biggest buildings, but they cannot touch the foundation of America. These acts shatter steel, but they cannot dent the steel of American resolve.

Freedom itself was attacked this morning by a faceless coward, and freedom will be defended.

Our enemies are innovative and resourceful, and so are we. They never stop thinking about new ways to harm our country and our people, and neither do we.

Freedom is not our gift to the world it is God's gift to humanity.

To those of you who received honours, awards and distinctions, I say, well done. And to the C students, I say, you too can be president of the United States.

I do solemnly swear that I will faithfully execute the Office of President of the United States, and will to the best of my Ability, preserve, protect and defend the Constitution of the United States

A dictatorship would be a heck of a lot easier, there's no question about it.

I believe a marriage is between a man and a woman.

Being our best is asking how can we take ourselves to the precipice of our own limits in any and every situation?

There are no European voices at Geneva, there are no European voices at START.

People think I'm more wild than I am... I like going to theme parks, play sports or just hanging out with my friends.

We are on the precipice of climate system tipping points beyond which there is no redemption.

All creation is in the art of seeing.

Many axes are being kept under cover, waiting in ambush, ready to pounce, when we resign. Have no worries. We will deliver this homeland to you perfectly clean, as it was in Atatürk's time.

A person may forget 90% of what a leader says, but he will never forget how the leader lives.

I’ve never really been contained to just one style. My listening choice has always been so mixed up.

Beauty is first and foremost an emotion.

And part of my vision is to do dynamic videos for kids.