Chapter 20, Part 1B - Chuang Tzu

Down from the mountain, the Master stopped for a night at the house of an old friend. The friend, delighted, ordered his son to kill a goose and prepare it. "One of the geese can cackle and the other can't," said the son. "May I ask, please, which I should kill?"

"Kill the one that can't cackle," said the host.
~ Burton Watson translation via Terebess Asia Online ~

Go here to read the introductory post to the chapters of the Book of Chuang Tzu.