Some other classic Star Wars lines-

"You can't win, Darth. If you strike me down, I shall become more powerful than you can possibly imagine"-Obi-Wan Kenobi

"Apology accepted, Captain..."-Darth Vader, after executing Captain Needa.

"These aren't the droids you're looking for"-Obi-Wan Kenobi

"We seem to be fated to suffer, it's our lot in life..."-Cee Threepio

"I don't believe it!!

"That...is why you failed"-Yoda and Luke, after Yoda uses the force to retrieve Luke's X-wing from the swamp.