In ancient and modern times, those who have achieved great achievements and great knowledge must go through three realms: Last night, the west wind withered the green trees and climbed the tall building alone to look at the end of the world. This is the first realm. The two of them could only succeed if they persevered. 3. There is no limit to learning, but one's ambition is high. Diligence can make up for the lack of cleverness, but cleverness cannot make up for the defect of laziness. Success = hard work + correct method + less empty talk. 6. Don't be afraid of a long journey, but be afraid of a short ambition. Success lies between the eyebrows-confidence. Those who have aspirations will do everything possible. Those who have no aspirations will only feel that it is extremely difficult. There is a road to the mountain of books, and it is hard to make a boat for the endless sea of learning. How many times can you fight in your life? If not now, when?