1, private education, created a wave of private education, and changed "learning from officials" to "learning from the people".

2. Put forward the educational policy of "teaching without distinction" and "teaching students in accordance with their aptitude", which has a great influence on future generations.

3. He wrote poems, books, ceremonies, music and preface to Zhouyi and Chunqiu, leaving a rich cultural heritage.

He taught 3000 disciples and 72 sages, making Confucianism the most influential school at that time.