There are countless examples in similar materials. No famous saying can be regarded as absolute truth, and it can only be established under certain conditions.

The reason why a sentence is passed down and quoted as a famous saying must have its correct side, but it cannot be considered that a famous saying is truth. Because of different angles, we can get different understandings. The so-called "looking at the ridge side into a peak", from another angle, we can draw different or even opposite conclusions from famous sayings.

With the progress of history, especially in the period of social change, the famous sayings that were originally regarded as truth often can't stand the test of practice, and the truth is developing, so it is logical to question the famous sayings.

As a student, perhaps remembering a famous saying will promote their growth and progress, perhaps practicing a famous saying will lead to a leap in understanding, perhaps questioning and denying a famous saying will sublimate their thoughts, and perhaps they will say their own "famous saying" after realizing the truth.