Side

Number Six: [referring to the chess game] Why do you use people?

Man With Stick: Some psychiatrists say it satisfies the desire for power. The only opportunity one gets here.

Number Six: That depends what side you're on.

Man With Stick: I'm on my side.

Number Six: Aren't we all?

Man With Stick: You must be new here. In time, most of us join the enemy... against ourselves.

-"The Prisoner" (TV Series)
Episode 4, "Checkmate"