《论衡·卷一·累害篇》
像这样，关于市虎的谣言，关于投杼的误传，就不足为怪了；那把美玉当成顽石，把珍珠看成碎石，也就不足为奇了。
夫如是市虎之讹，投杼之误，不足怪，则玉变为石，珠化为砾，不足诡也。
Thus, rumors about Shi Hu and misinterpretations about casting shuttles should not be regarded as strange; confusing jade with rough stones and mistaking pearls for gravel should also not be surprising.
<s>[INST] Kindly elucidate the central themes in this passage in English: 夫如是市虎之讹，投杼之误，不足怪，则玉变为石，珠化为砾，不足诡也。 [/INST] Thus, rumors about Shi Hu and misinterpretations about casting shuttles should not be regarded as strange; confusing jade with rough stones and mistaking pearls for gravel should also not be surprising.</s>
Kindly elucidate the central themes in this passage in English: 夫如是市虎之讹，投杼之误，不足怪，则玉变为石，珠化为砾，不足诡也。
user
Thus, rumors about Shi Hu and misinterpretations about casting shuttles should not be regarded as strange; confusing jade with rough stones and mistaking pearls for gravel should also not be surprising.
assistant