Luke Skywalker: If I don’t make it back, you’re the only hope for the Alliance.

Leia Organa: Luke, don’t talk that way. You have a power I don’t understand and could never have.

Luke Skywalker: You’re wrong, Leia. You have that power, too. In time, you’ll learn to use it as I have. The Force is strong in my family. My father has it. I have it. And my sister has it. Yes. It’s you, Leia.

Leia Organa: I know. Somehow, I’ve always known.

From the movie Star Wars: Return of the Jedi (1983) | Produced by Lucasfilm