In the era of the contention of various schools of thought in China's pre-Qin society, various ideas competed with each other, and the three religions and nine streams were ups and downs as the heroes of China competed for the throne. I have no intention of yearning for it! Unexpectedly, after Emperor Wu of the Western Han Dynasty implemented the "depose of hundreds of schools of thought and only respected Confucianism", various theories became side branches, and Confucianism became the official orthodoxy. Although Taoism, Buddhism and Confucianism were left as the three major theories in later generations of China, I always think about it. Everyone is heartbroken when the thoughts and doctrines of ancient Chinese masters gradually disappear from the world. Although every imperial court since the Han Dynasty has implemented book bans, fortunately, the common people have basically preserved and passed down the doctrines of these scholars, and some have undergone many changes, such as the Mohist chivalrous thought.
In today's China, when we are building socialist spiritual civilization, in addition to promoting socialist values, it is also a good way to take the essence and discard the dross from the previous culture to find the Chinese people's own spiritual food. This is one of the important purposes of this book.