《文予·道德）中说：“上学以神听，中学以心听，下学以耳听。以耳听者学在皮肤，以心听者学在肌肉，以神听者学在骨髓。故听之不深，即知之不明。”古人把会学习和不会学习的人分为三类，善于学习的人里入神地听讲，第二种人是用心（即认真）听讲，不会学习的人则是马马虎虎 “Wen Yu-Jian” said: “Going to school listens to God, in high school you listen to your heart, and you go to school to listen to your ears. Learn to listen to your skin with your ear, listen to your muscles with your hearers, and learn with your hearers in your bone marrow.” Therefore, people are not aware of the fact that they are not aware of it.” The ancients divided the people who would study and would not learn into three categories. Those who are good at learning would listen intently and the second person would listen carefully (not to learn) and would not learn. People are so-so