A jade craftsman went to the stone market and bought a stone. He broke it up and retrieved a block of jade. The jade is of the top-notch quality. As a result, the jade craftsman became very wealthy.
The stone merchant who sold the stone heard of the story and felt that his stones must also contain jade. Therefore, he broke up all the stones in the shop looking for jade. Not only did he waste time and sweat, he ended up with useless stones without finding any jade and was scolded bitterly by his wife.
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