Freedom itself was attacked this morning by a faceless coward, and freedom will be defended.
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.
Use power to help people. For we are given power not to advance our own purposes nor to make a great show in the world, nor a name. There is but one just use of power and it is to serve people.
Leadership to me means duty, honor, country. It means character, and it means listening from time to time.
I have a different vision of leadership. A leadership is someone who brings people together.
I believe the most solemn duty of the American president is to protect the American people. If America shows uncertainty and weakness in this decade, the world will drift toward tragedy. This will not happen on my watch.
Today we affirm a new commitment to live out our nation's promise through civility, courage, compassion and character.