When Tired

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The master replied, "When hungry, eat. When tired, sleep."

In other versions of this story, one disciple is bragging about his master to the disciple of another master. He claims that his teacher is capable of all sorts of magical acts, like writing in the air with a brush, and having the characters appear on a piece of paper hundreds of feet away. "And what can your master do?" he asks the other disciple. "My master can also perform amazing feats," the other student replies. "When he's tired, he sleeps. When hungry, he eats"........... or simply, "When he sleeps, he sleeps. When he eats, he eats."