1. Observe carefully in order to understand; We should try to understand, in order to act. -Roman Roland's John Christophe

2. Life is a horse, a brisk and strong horse, and people should ride it boldly and carefully like a rider. -Haisai

3. Without tenacious and careful work, even talented people will become useless playthings like embroidered pillows. -Uncle Vanya by stanislavski

4. Observation is as essential to children as sunlight, air and moisture are to plants. Here, observation is the most important energy of wisdom. -Sukhomlinski's Birth of a Citizen

5. Careful observation of small things is the secret of success in career, art, science and life. -Smeyer's cherry orchard

6. The meaning of the word genius is extremely vague, and its definition is by no means the so-called "being born with knowledge and learning without learning". There are no people born in the world who know it. There are no people who can learn without learning. Genius is mostly cultivated by hard work. Genius is mostly due to careful cultivation. -Guo Moruo's Complete Works of Guo Moruo

7. Observe, observe, and then observe. -Pavlov's Lecture Notes on Digestive Gland Function