From Apocalypto. A father speaking to his son:
"The people in the forest. What did you see on them?"
"I do not understand."
"Fear. Deep rotting fear. They were infected by it. Did you see? Fear is a sickness. It will crawl into the soul of anyone who engages it. It has tainted your peace already. I did not raise you to see you with fear. Strike it from your heart. Do not bring it into our village..."
The threats these people faced were real, but the old man's advice was sound. Fear is a disease. It cripples and destroys those that harbor it, rendering them ineffective.
Everywhere I turn in this land, I see people embracing fear. And it's killing us.