From Tao Jin Yuanming's Biography of Mr. Wu Liu.

I like reading, but I'm not limited to details. Whenever the truth in the book coincides with my own mind, I am so happy that I forget to eat.

Metaphysics flourished in Wei and Jin Dynasties. Celebrities in Wei and Jin dynasties advocated "lightness", studied and studied, and took "meaning" as the highest. It was originally a reading fashion in Wei and Jin Dynasties that "you should study hard, but you don't want to know much". This kind of "not asking for a solution" just doesn't stick to details, emphasizes grasping the spirit and essence of the object as a whole, and obtains great pleasure from understanding and discovery. Therefore, the original meaning of famous sentences shows a noble celebrity style and a spirit of exploration. Later generations have changed their understanding of it, especially the previous sentence, which is often used to express a way of reading that has been eaten alive, which is inconsistent with the original intention.