Fan Chin was the first one to finish his paper.Chou Chin read it carefully but was not satisfied.Chou Chin thought,"An essay of this low quality cannot pass," and then he put it aside.A short while later,before anyone else had finished,Chou Chin thought,"Why don't I read Fan Chin's paper again?If there is any way I can pass his essay,I will do so to reward his will and hard effort."