China is a master of hardship. Sharpen a sword every ten years. Bao Jianfeng sharpened the fragrance of plum blossoms from bitter cold. The brighter the knife and gun, the more knowledge he accumulated. A dull knife grinds on a stone and fools learn from it. ◆ Knives should be reinforced quickly, and Ma Zhuang should be reinforced. ◆ Knives will rust if they are not sharpened, and people will fall behind if they don't learn. ◆ Three points depend on teaching and seven points on learning. ◆ Land is valuable in cultivation, and knowledge is valuable in application. Never teach a bug when you are young, and never learn a lazy dragon when you grow up. ◆ Not afraid of difficulties, but afraid of impatience. I don't know a word without reading. ◆ Digging a well three times to eat delicious water, people learned the martial arts of the Third Division. ◆ There must be victory in the competition, and there must be 10% effort. Cows can't plow without practice, and horses can't ride without practice. Fingers are long and short, and knowledge is high and low. ◆ Use your heart and plant the ground. ◆ Only an expert can embroider and be calm can weave hemp. ◆ Drops of water wear through the stone, and thick accumulation makes thin hair. ◆ Jade is not cut, and it is not a tool; Wood is not carved, and it is not a success; People don't learn and don't understand. Nothing in the world is difficult for one who sets his mind to it. Elbow grease gives the best polish. A bird's wings are precious, and a man's wisdom is precious. Ask questions while learning, and you will learn. It is better not to teach if you have a son. ◆ Learning is sought in bitterness, and art is practiced in diligence. There is wisdom in words and wisdom in books. ◆ A skillful craftsman works with precision, and the tile is poured with fine mud. ◆ Find an opportunity and get tired every day; To get the best, fight with your life. It takes hard work to acquire amazing skills.