"It was when you insisted that the, uh, the young lady, Tish—that Tish must pay, too. 'Tone-stapple,' or something like it."
"Oh, 'tanstaafl.' Means 'There ain't no such thing as a free lunch.' And isn't," I added, pointing to a FREE LUNCH sign across the room, "or these drinks would cost half as much. Was reminding her that anything free cost twice as much in long run or turns out worthless."
Robert A. Heinlein
