After all, many people submit letters of recommendation every year. If you can find a well-known expert in this field to write a letter of recommendation for you, it will certainly have certain benefits, but it will only play a icing on the cake. If your resume is good enough, you don't have to pursue a letter of recommendation excessively. Similarly, you must be good enough to make a letter of recommendation icing on the cake.

In the early 1980s, the National Natural Science Foundation was put forward by 89 academicians of the Chinese Academy of Sciences in a letter to the CPC Central Committee and the State Council, with the aim of promoting the reform of China's science and technology system and changing the allocation of scientific research funds.