杨子是一个农村的养羊人，他家门前的一块空地常常被村民们走过，但他并不在意，因为他非常信任他的邻居们。然而，有一天，他的邻居却来到他家门口，告诉他说他的羊不见了。杨子感到非常不安，因为这些羊是他家的重要资产之一。他开始搜索附近的草丛和树林，但是没有任何迹象表明羊在哪里。他的邻居们也帮他搜寻，但还是没有找到羊。

几天后，杨子的一个邻居过来告诉他，他发现了一只死羊，就在村子的另一端。杨子非常悲痛，不仅因为他失去了一只羊，而且因为他失去了他所信任的邻居。他开始重新评估他的邻居们，开始怀疑他们是否真的那么可信。

这个故事告诉我们，即使我们信任某些人，但我们也应该保持警惕，因为我们从未知道他们是否真的是我们所想象的那样。我们需要保持谨慎，以免让我们的信任被背叛。

原文：

Yang Zi, a sheep farmer in a rural area, often saw villagers walking through the empty space in front of his house, but he didn't mind because he trusted his neighbors. However, one day, one of his neighbors came to his doorstep and told him that his sheep were missing. Yang Zi felt very uneasy because these sheep were one of his family's important assets. He began searching the nearby grass and trees, but there was no sign of the sheep. His neighbors also helped him search, but still couldn't find the sheep.

Several days later, one of Yang Zi's neighbors came to tell him that he found a dead sheep at the other end of the village. Yang Zi was very sad, not only because he lost a sheep, but also because he lost the trust he had in his neighbors. He began to re-evaluate his neighbors and started to doubt whether they were really as trustworthy as he had imagined.

This story tells us that even if we trust certain people, we should still be cautious because we never know if they are really what we imagine them to be. We need to stay vigilant to avoid having our trust betrayed.