As the saying goes: "Diligence can make up for clumsiness." No matter how ignorant, stupid or ordinary people are, if they keep working hard, they can generally become knowledgeable people. Diligence means constantly learning knowledge, understanding knowledge, and mastering knowledge. If a person wants to be smart, he needs to keep learning and accumulating. Hua Luogeng has a famous saying: "Genius lies in accumulation, intelligence comes from diligence." This makes sense. Just like the ancient great scholar Ling Shu, his family was poor when he was a child and he had no money to go to school. Later, he was diligent and thrifty, saved a lot of money, bought many books and came back to study, and finally became a great scholar. There is also a story told by Zhu Xi, a scholar from the Song Dynasty: There was a man named Chen Zhengyi in Fuzhou who was very slow to read. He could only read 50 words at a time, and he had to read a short article one or two hundred times before he was familiar with it. He was neither lazy nor sluggish, and he studied and practiced diligently. When others read it once, he read it three or four times. As time went by, his knowledge increased day by day. Later, he read all books and became a learned man. The famous chemist Mendeleev once said: "If you work hard all your life, you will become a genius." Generally, people think that geniuses must be very intelligent. So, Mendeleev's words tell people a truth. If you want to be very wise, you must work tirelessly throughout your life. For example, Li Shizhen, the editor of "Compendium of Materia Medica", devoted his life's experience to completing this masterpiece of pharmacology. He often went to the mountains to collect medicines, went deep into the people, and consulted farmers, fishermen, woodcutters, and charlatans. At the same time, he also read more than 800 medical books from past dynasties before completing this book. These examples all prove that smart people are not necessarily born smart, but rather acquired through lifelong efforts. Now, among those of us who are studying, many of us think that we are inherently deficient and cannot learn well, so we are pessimistic and discouraged and have no intention of learning. In fact, this is not necessary. As long as you work hard, hope is in front of you.