My advice would be the same advice that I gave President [George W.] Bush when he won in '04, and, kind of, wasn't followed. I think you go with the things you know you can pass.

The past is what we have to learn about how to direct America to the future.

Great men have big failures.

I'm probably one of the four or five best known Americans in the world.

If we build our military up to Ronald Reagan levels, [Vladimir] Putin's not going to push us anywhere because he can't match us.

Immigrants are exactly what America needs. They're what we need economically, and I think they're what we need morally... [They] revitalize America and get it back to its sense of confidence... All of these immigrants that come here help us with the work they do, they challenge us with new ideas and new perspectives, and they give us perspective.

Freedom is about authority. Freedom is about the willingness of every single human being to cede to lawful authority a great deal of discretion about what you do.