Emperors of past dynasties have taken precautions against the autocratic power of eunuchs and the intervention of harem, but they are often hard to prevent. This is because eunuchs and ladies-in-waiting are closest to the emperor, and the so-called "the moon comes first by the advantage". From the perspective of emperors and ministers, they are actually people with special rights, because they are close to imperial power.
Eunuch dictatorship
Since the Qin and Han Dynasties, since Zhao Gao, there have been many cases of eunuch's autocracy, and Zhao Gao was so overbearing that even the Qin Dynasty finally perished.
During the Three Kingdoms period, Cao Cao hated eunuchs. Of course, this is due to his own psychological factors, that is, he is also a eunuch. But the most important thing is his political sensitivity as a politician. He saw through the harm of eunuch tyranny, so he hated eunuchs very much.
The founders of a dynasty often take the initiative to summarize the reasons for the collapse of the former dynasty, and then guide them to formulate strategies to rule the world, such as strictly restricting the eunuch's freedom of speech and action.
Eunuch's life, because of its special physiology, is in a distorted state, so it is often crazy and abnormal.
The harem is in charge.
The harem intervenes in politics for a long time. In the Han Dynasty, Lv Hou was autocratic, which almost changed the name of Dahan Dynasty. A Empress Dowager Cixi appeared in the Tang Dynasty, which almost led to the annexation of the Chinese nation and the extinction of the country.
It's really hard to prevent people in the harem from going in one ear and out the other. In particular, most emperors of past dynasties were lewd and lewd, and few emperors were able to act arbitrarily and completely get rid of the influence of the harem. At the same time, under the feudal traditional system of ruling the world by filial piety, emperors may have to listen to the words of the empress dowager.
Although emperors have always seen the harm of harem intervention and formulated corresponding preventive measures to prohibit harem intervention, few people have implemented it.