Current or in the past, what are your best lines? This is a little less restrictive than "your first 3 lines" or "last line you wrote today." Choose something from anywhere in anything you've ever written and take your best shot.
Here's one I'm rather fond of to get this started.
"With all due respect, sir, I don’t have the capacity for curiosity. If you wanted a curious robot you should have ponied up the extra credits and gotten the deluxe model.”