A few of my faves:

"I didn't claw my way to the top of the food chain to snack on vegetables." - Karl Gans

"You can't manipulate the marionette with only one string" - It's from one of the Dune books. Chapterhouse I think.

"The mystery of life isn't a problem to solve, but a reality to experience." - Dune

"Let us not rail about justice so long as we have arms and the freedom to use them." - Dune

"If you need something to worship, then worship life - all life, every last crawling bit of it! We're all in this beauty together!" - Dune Messiah

"My uncle Malky use to say that love was a bad bargain because you get no gaurantees." "Your uncle Malky was a smart wise man." "He was stupid! Love needs no guarantees." - God Emperor of Dune - Hwi Noree to Duncan Idaho