True story

President Snow: Seneca… why do you think we have a winner?
Seneca Crane: What do you mean?
President Snow: I mean, why do we have a winner? I mean, if we just wanted to intimidate the districts, why not round up twenty-four at random and execute them all at one? It would be a lot faster.
[...]
President Snow: Hope.
Seneca Crane: Hope?
President Snow: Hope. It is the only thing stronger than fear.