Knowledge is not afraid of shallow roots. The next sentence is that it is never too late to take a step. It means that learning is not afraid of poor foundation, as long as it is not too late to start studying hard. "Shallow foundation" means poor foundation. "Step" is to start studying hard and make continuous progress in learning. This sentence comes from Mount Emei in Qin Yi. The original sentence is "Xiongguan is as iron as iron, and this is a step." Don't say that the ups and downs of the mountain are as insurmountable as iron, now let's rally.

The word "Yi Qin E Lou Shan Guan" describes the scenery, followed by lyricism. It outlines a magnificent winter night March from the inside out, depicts the intense scene of the Red Army's Long March in Loushanguan, and shows the author's calm tolerance and broad mind in the face of failure and difficulties. The whole poem is full of emotion, with scenes in it, seamless and harmonious. Although its length is short, it is magnificent, solemn and stirring, with only a few strokes, which is very "weighty", like a stick figure written by a master.