There are three ways to read, namely, heart, eyes and mouth. If your heart is not here, you will not look carefully, your heart will not be single-minded, you will only read aloud. You will never remember it, and it won't last long. Of the three, the heart is the most urgent, the heart is there, and the eye is not there? -Zhu
Su Shi, who is full of learning and makes appointments, accumulates wealth without making progress.
The edge of the sword comes from sharpening, and the fragrance of plum blossoms comes from bitter cold.
Erudition, interrogation, deliberation, discernment and persistence-The Book of Rites.