《论衡·卷七·语增篇》
以最仁义的武王去讨伐不仁义的纣王，怎么会血流得把杵都漂起来呢？ 
以至仁伐不仁，如何其血之浮杵也？ 
To have the most benevolent and righteous King Wu fight against the unrighteous Shang, how could the blood reach the pestles?
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 以至仁伐不仁，如何其血之浮杵也？  [/INST] To have the most benevolent and righteous King Wu fight against the unrighteous Shang, how could the blood reach the pestles?</s>
Explain the meaning of this Classical Chinese passage in English: 以至仁伐不仁，如何其血之浮杵也？
user
To have the most benevolent and righteous King Wu fight against the unrighteous Shang, how could the blood reach the pestles?
assistant