1, Confucius lobbied governors everywhere, but his suggestion was not adopted. After he retired, he wrote a book and made a statement, which was widely accepted by his disciples. Later, his Confucianism became the orthodox culture of China.

2. Xuanzang tried to learn from the West and made outstanding contributions to the Buddhist culture in China.

3. Chen Jingrun forgot to eat and sleep, worked hard day and night, cracked Goldbach's conjecture and became the first one.