Turn II
RIKER: What's on your mind?
GUINAN: I've heard a lot of people talking down in Ten Forward. They expect to be dead in the next day or so. They trust you. They like you. But they don't believe anyone can save them.
RIKER: I'm not sure anyone can.
GUINAN: When a man is convinced he's going to die tomorrow, he'll probably find a way to make it happen. The only one who can turn is around is you.
-Star Trek: The Next Generation
"The Best Of Both Worlds", Part 2