Philosopher of the School of Names, 名家, and chief minister of Wei. He is remembered as the debating partner of 庄子, who asked him on a bridge whether one can know that fish are happy.
Zhuangzi and Huizi debated 'the joy of fish' on the bridge over the Hao River.
Tips
culture
The idiom 学富五车, 'learning that fills five carts', for a very learned person, comes from him: the book 《庄子》 says 惠施 had many skills and 其书五车, 'his books filled five carts'.
culture
At 惠子's grave, 庄子 told of a carpenter who could swing his axe like the wind and shave plaster off a friend's nose, until that friend died; since 惠子 died, he said, he had no one to talk with. The idiom 运斤成风 comes from this story.