There is a road to diligence in Shushan, and there is no limit to learning the sea. Tian Xingjian, a gentleman strives for self-improvement; The terrain is Kun, and the gentleman carries things with morality; Leap, not ten steps; Ten drivers, Xu, contributed; Perseverance, rotten wood can't be carved; Perseverance, the stone can be carved. Learning is like sailing against the current. If you don't advance, you will retreat. There are a large number of organisms with soil fertility, and the limit of human beings is great. Take it in moderation and use it sparingly. Take it too much, use it too much, and it is often insufficient. Time flies, the sun and the moon fly like a shuttle. A lazy youth, a lousy age. Time is not long, and youth waits for no one.