Don't worry about things, that you can do better next time. Don't worry about stuff you can't control.

American leadership is essential.

[Donald Trump] suggestions that the United States should leave the Pacific and let Japan, South Korea, or whoever else wants to develop nuclear weapons. These are incredibly dangerous ideas that need to be confronted.

The United Nations and the Organization of American States have named 2011 as the International Year for People of African Descent. This is an opportunity for all of us around the globe to celebrate the diversity of our societies and to honor the contributions that our fellow citizens of African descent make every day to the economic, social and political fabrics of our communities.

One thing for certain you will not ever hear from me is praise for dictators and strongmen who have no love for America.

I do think, you know, you don't have to have 30 billion, but you have a certain level of freedom.

I want to be the best president I can be for every American.