1. The goal is set. No matter what difficulties and twists and turns you encounter in the process of learning and practice, you will not be discouraged. You will not easily change your goals, but work hard to learn and struggle. Only in this way will you be able to Achieve something and achieve your goals.

——Wu Yuzhang

2. Learning is like digging a well. The deeper the well, the harder it is to get out. If you are not determined to the end, how can you see the source of the spring?

——Zhang Jiugong

3. You should know that learning is difficult, and you only care about your hard work. It is especially difficult to get up to the difficult level and train your moral character to be pure.

——Chen Yi

4. Don’t be afraid of difficulties when attacking a city, and don’t be afraid of difficulties when attacking a book. There are dangers in science, but you can overcome them by fighting hard.

——Ye Jianying

5. Is it difficult or easy to study? If you learn it, the difficult things will become easy; if you don't learn them, the easy things will also become difficult.

——Uncle Peng Duan

6. Worldly knowledge has shallow meaning and many clues. It seems easy but turns out to be difficult. Supermundane knowledge has deep meaning and reason. It has one clue. It seems easy to escape from difficulty. What is the clue? You should search for the nature of your mind when you present a thought, try to observe the nature of your mind, and find it within? Outside? In the middle? Past? Now? Or the future? Long, short, square and round? Red, white, green and yellow? If you look for the mind and cannot find it, you will realize the true nature of your own nature. You should directly believe in it and bear it without any mistakes. Try to observe the nature of your mind, inside and outside, in the middle, past, present, future, long and short, square and round, red and white, green and yellow.

——Li Shutong

7. It is not difficult to master all the learning and knowledge in the world. As long as you study persistently, work hard to master the rules, and reach a familiar situation, you can master it. , you can use it freely.

——Gao Shiqi

8. Adversity is the highest school for human beings to obtain knowledge, and difficult problems are the door for people to obtain wisdom.

——Socrates