Spock: [finding himself aboard the ship of his future self] It appears that you have been keeping important information from me.
James T. Kirk: You'll be able to fly this thing, right?
Spock: Something tells me I already have.
James T. Kirk: Good luck.
Spock: Jim... the statistical likelihood that our plan will succeed is less than 4.3%.
James T. Kirk: It'll work.
Spock: In the event that I do not return, please tell Lieutenant Uhura...
James T. Kirk: Spock. IT'LL WORK.