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An Youyu, an outstanding scholar from Shaanxi, was generous and loyal to his friends. He also loved to free captive animals. When he saw hunters capturing animals or birds, he would not hesitate to buy the game and set it free.
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There once lived a scholar by the name of Dongguo, who was known for his compassion.
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The smallest and the most alert of a flock of wild geese is often chosen to keep vigil for the others during the night. At the slightest untoward sound it raises the alarm and the flock start from their sleep and make off.