The debate is the bridge of their idea. Huishi and Zhuangzi had three debates on the topics: "big but no use", "without passion" and "fish's happiness", which is the second aspect the paper based on.

庄子与惠施建立思想交流的桥梁是辩论，二人共发生了三次争论，分别是：“大而无用”之争、“人故无情”之争、“鱼乐”之争，此是本文关注的重点之二。

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