Trying to get everyone to like you is a sign of mediocrity.

When you decide to get involved in a military operation in a place like Syria, you've got to be prepared, as we learned from Iraq and Afghanistan, to become the government, and I'm not sure any country, either the United States or I don't hear of anyone else, who's willing to take on that responsibility.

The one thing the terrorists cannot do -- not one of them, not 10 of them, not 10,000 of them -- they cannot change who we are.

Treat people kindly. When you are kind to somebody and I don't mean necessarily "buddy-buddy", just show kindness and consideration. Show that people are worthy and you respect them and you are glad they're with you.

An organization that is not facing up to people who are not getting the job done, is going to have difficulties.

Nobody wants to be in a mediocre organization. You don't have the same energy flowing through.

Good leaders set vision, missions, and goals. Great leaders inspire every follower at every level to internalize their purpose, and to understand that their purpose goes far beyond the mere details of their job. When everyone is united in purpose, a positive purpose that serves not only the organization but also, hopefully, the world beyond it, you have a winning team.