Best sci-fi movie quotes of 1980

Luke: All right, I'll give it a try.
Yoda: No. Try not. Do, or do not. There is no try.

General Zod: I win. I always win. Is there no-one on this planet to even challenge me?

Captain Yelland: If the United States falls under attack our job is to defend her in the past, present and future.
Lasky: And after that?
Captain Yelland: After that, we take our orders from the Commander in Chief of the United States Armed Forces.
Lasky: Franklin Delano Roosevelt?

Cowboy: Welcome, Nestor. I'm from Earth. Ever hear of it?
Nestor 1: No, but we are pleased to meet you.

Dr. Hans Zarkov: We are only interested in friendship. Why do you attack us?
The Emperor Ming: Why not? Pathetic earthlings. Hurling your bodies out into the void, without the slightest inkling of who or what is out here. If you had known anything about the true nature of the universe, anything at all, you would've hidden from it in terror.

Benson: Saturn 3. When they want to give the Solar System.
Adam: - give the Solar System an enema, that's where they stick the tube in. We've heard that one.

Emily Jessup: Fight it, Eddie! You made it real. You can make it unreal. If you love me... If you love me, Eddie, fight IT.

Mayor: And if they traced it back to the company.
Slade: You'd be out of a job, for one thing.

Kobras: I always perfer to strike first.

Willy Dunlop: I'm standing... on top of the world.