How we cite our quotes: All quotations are from Star Wars: A New Hope.
Quote #4
STORMTROOPER: Let me see your identification.
OBI-WAN: You don't need to see his identification.
STORMTROOPER: We don't need to see his identification.
OBI-WAN: These aren't the droids you're looking for.
STORMTROOPER: These aren't the droids we're looking for.
OBI-WAN: He can go about his business.
STORMTROOPER: You can go about your business.
OBI-WAN: Move along.
STORMTROOPER: Move along. Move along.
Compare Obi-Wan using the Force here to the previous scene with Vader. Obi-Wan also uses the power of the Force, but the power is more passive and persuading. Both men get what they want, but we get a sense of very different characters because of the way they wield their power.
Quote #5
TARKIN: There. You see, Lord Vader? She can be reasonable. Continue with the operation. You may fire when ready.
LEIA: What?
TARKIN: You're far too trusting. Dantooine is too remote to make an effective demonstration, but don't worry. We will deal with your rebel friends soon enough.
LEIA: No!
Tarkin's brand of power makes Vader's seem tame by comparison. While Vader might choke a guy, Tarkin blows up entire planets to convince whole peoples to follow his orders. For Tarkin, the purpose of power is to instill fear, and fear leads to compliance.
Quote #6
OBI-WAN: Remember, a Jedi can feel the Force flowing through him.
LUKE: You mean it controls your actions?
OBI-WAN: Partially, but it also obeys your commands.
[Luke gets hit. Han laughs.]
As we saw earlier, Luke doesn't have the power to make it in the universe. Obi-Wan begins training him to use the Force so that he can do just that.