Ruthless is not necessarily the word I would use, but tough, resolute, understanding what the problems are, and understanding that the job of the president of the United States is to protect the people of this country and to do what is necessary in order to get it done.

There is no fulfillment in things whatsoever. And I think one of the reasons that depression reigns supreme amongst the rich and famous is some of them thought that maybe those things would bring them happiness. But what, in fact, does is having a cause, having a passion. And that's really what gives life's true meaning.

There is a tendency of people to try to make you believe only a few people are smart. As a brain surgeon, I know better than that.

Corporations are not in business to be social-welfare organizations; they are there to make money.

We should be concerned not only about the health of individual patients, but also the health of our entire society.

Success is determined not by whether or not you face obstacles, but by your reaction to them. And if you look at these obstacles as a containing fence, they become your excuse for failure. If you look at them as a hurdle, each one strengthens you for the next.

The left, of course, will say Carson doesn't believe in the Geneva Convention, Carson doesn't believe in fighting stupid wars. And - and what we have to remember is we want to utilize the tremendous intellect that we have in the military to win wars.