""How much re-fit time, until we can take her out of here?" -- Kirk,(from: Star Trek III: The Search For Spock)
"Eight weeks. But you don't have eight weeks, so I'll do it for you in two." -- Scotty,
"Mr Scott: have you always multiplied your repair estimates by a factor of four?" -- Kirk,
"Certainly, Sir! How else can I keep my reputation as a miracle worker?" -- Scotty,
"Your reputation is secure, Scotty." -- Kirk,
UPDATE: I've found a video clip of this bit, which has allowed me to get the wording precisely correct now...