How we cite our quotes: All quotations are from Star Wars: A New Hope.
Quote #1
LEIA: Darth Vader, only you could be so bold. The Imperial Senate will not sit still for this. When they hear you've attacked a diplomatic—
VADER: Don't act so surprised, your highness. You weren't on any mercy mission this time. Several transmissions were beamed to this ship by rebel spies. I want to know what happened to the plans they sent you.
LEIA: I don't know what you're talking about. I'm a member of the Imperial Senate on a diplomatic mission to Alderaan.
VADER: You are part of the Rebel Alliance and a traitor. Take her away!
Despite taking the role of the damsel in distress, Leia displays her courage right away. She knows Vader could kill her because he works outside the law, yet she stands her ground against the hulking mass of mechanical death. You go, girl!
Quote #2
LUKE: No. It's all right, but I think we'd better go.
R2: Bleep, blop, blip.
LUKE: What's wrong with him now?
C-3PO: There are several creatures approaching from the southeast.
LUKE: Sand People, or worse. Come on, let's go have a look. Come on!
No, don't go! Have you never seen a movie? Luke starts the film with an adventurous spirit but it manifests as youthful recklessness. His courage results in misplaced action, and he'll need to grow into it as the film progresses.
Quote #3
GRAND MOFF TARKIN: The Imperial Senate will no longer be of any concern to us. I have just received word that the emperor has dissolved the council permanently. The last remnants of the old Republic have been swept away.
IMPERIAL COMMANDER: That's impossible. How will the emperor maintain control without the bureaucracy?
TARKIN: The regional governors now have direct control over their territories. Fear will keep the local systems in line—fear of this battle station.
Tarkin uses the Death Star like a courage siphon, slurping up the will to resist the Empire and replacing it with fear. Through fear, the regional governors will do what he wants. If it weren't for those pesky Rebels and their abundance of courage, his job would be cake.