1, Wang Xizhi and "Mo Chi" Wang Xizhi were famous calligraphers in the Eastern Jin Dynasty. He keeps practicing calligraphy every day, and then washes his pen in the pond near his home. Day after day, the water in the whole pond was dyed black. So people call this pond "Mo Chi", "Xiyan Lake" and "Pen Washing Pool". After a long period of hard work and hard artistic practice, he finally created many immortal famous paintings. 3. Sima Qian began to write historical records at the age of 42 and completed it at the age of 60, which lasted 18 years. If you add up the work of collecting historical materials and field interviews after he was 20 years old, this historical record took him 40 years. Genius comes from diligence. Edison had 1000 inventions in his life.