Voice (Princess Irulan): Arrakis...Dune...wasteland of the Empire...and the most valuable planet in the Universe...because it is here, and only here, where spice is found. The spice...without it, there is no commerce in the empire. There is no civilization. Arrakis...Dune...Home of the spice...greatest treasure in the universe...and he who controls it, controls our destiny.
Dune
RMReverend Mother Mohiam
How dare you turn your back on the centuries of our breeding programs?
JLady Jessica
I'll pay for my mistakes.
RMReverend Mother Mohiam
And your son will pay it with you! We'll do what we can. He may be worth saving. But for the father, nothing.
THThufir Hawat
I am a Mentat. I trust logic and statistics, not mysticism and prophecy.
PDPiter De Vries
In order for the Empire to survive, the spice must flow.
[Baron Harkonnen and his nephew, Feyd, discusses the Baron's plan for securing a steady income of spice.]
FFeyd
What about the other Great Houses? They're sure to protest.
Perverting common wisdom, Nephew, is a mark of all great conspiracies.
JLady Jessica
We are not like the Harkonnen. You will be treated here with respect.
PAPaul Atreides
Well then, if you're right, this place is a trap.
Perhaps. But knowing there's a trap is the first step in evading it.
On Caladan we ruled by air and sea, Paul. And here, we need desert power.
They tried to take the life of my son!
PIPrincess Irulan
My father will no doubt reward you for such mindless obedience, Captain.
I want Leto Atreides to appreciate the beauty of what I've done to him. I want him to know that I, Baron Vladimir Harkonnen, am the instrument of his family's demise...the extinction of House Atreides and the ascendance of House Harkonnen!
Muad'Dib
Better sometimes to miss an opportunity than invite disaster.
THERE IS NO YIELDING. IT'S TO THE DEATH, BOY!
No man recognizes leadership without the challenge of combat.
GRGlossu Rabban
SPIES! That's what you are! Spies for the Fremen scum! Fremen scum who raid my spice warehouses! Who destroy royal equipment!
These quotes come from Wikiquote's Frank Herbert's Dune pages and are available under the Creative Commons Attribution-ShareAlike License.