It's always been a waste of effort, but it's flowing freely today.
Last night, the river was full of spring water, and the huge ship was light. It used to spend a lot of energy and can't push it, but it can move in the middle of the water today.
This poem is also compared with rowing on water by means of figurative reasoning, which shows that reading has a gradual process, and you need the power of "pushing" when you first learn, and then you can "walk freely" when you find out the law and understand the reason. In this poem, Zhu Xi talks about the method of reading, but there is no shadow of how to read. But in a metaphorical way, it skillfully tells people how to read. Now we call continuous learning "charging", that is, we should constantly increase the motive energy for progress (as the poem says, "spring water is born"). This tells us that the "source" is very important, and everything must be done from the "root" (that is, grasping the key); It is absolutely impossible to act recklessly and irregularly, and the result will only be "wasting money" and "pushing on". It can be seen that this feeling of reading books has actually gone far beyond the scope of "learning" because of its philosophical thinking.