If you don't have a positive attitude in business and in life, you will never, ever be successful.

I never talk about military moves. I always criticized President [Barack] Obama with having an announcement that they're going into Mosul. They give the name, the date the time. I don't believe in that.

When you look at what's happening in Mexico, a friend of mine who builds plants said it's the eighth wonder of the world. They're building some of the biggest plants anywhere in the world, some of the most sophisticated, some of the best plants. With the United States, as he said, not so much.

We have to get very, very tough on cyber and cyber warfare. It is - it is a huge problem.

We should be building a nation and it should be called the United States of America. We are spending all our money nation-building in other places and they don't even want us.

Respect whatever it is [ Confederate flag] that you have to respect, because it was a point in time, and put it in a museum.

The era of strategic patience with the North Korean regime has failed. Many years, and it's failed. And, frankly, that patience is over.