学习需要思考，如果不思考就是愚蠢。

【原文】子曰：“吾与回言，终日不违，如愚。退而省其私，亦足以发，回也不愚。”

【英译文】 The Master said, "I have talked with Hui for a whole day, and he has not made any objection to anything I said;-as if he were stupid. He has retired, and I have examined his conduct when away from me, and found him able to illustrate my teachings. Hui!-He is not stupid."

【白话文】孔子说：“我整天给颜回讲学，他从来不提反对意见和疑问，像个蠢人。等他退下之后，我考察他私下的言论，发现他对我所讲授的内容有所发挥，可见颜回其实并不蠢。”

【个人感悟】 学习需要思考，如果不思考就是愚蠢。