What negative influence did traditional Chinese thought and culture have on China's lagging behind in the modern world and the formation of a semi-feudal, semi-colonial society?

Have an impact! It is true that China's traditional thinking (including military thinking) has stagnated China's development! Remember what Emperor Qianlong told the foreign envoys, "China is rich in goods and has everything, so we don't need foreign goods to communicate with each other"? China's military and economy were in a permanent pattern of development due to the closed-door policy and the closed-country policy! Their own things can not go out, the outside technology can not enter! Military thinking: until the foreign invasion! (Opium War) against foreign rear-mounted rifle squares, but also take the traditional group charge! Give it to someone to practice marksmanship! 。。。。 The artillery is still stuck in the mode of position to position bombardment! And foreign guns take boring pressure after crashing hair hit farther still flexible! And Chinese guns are still stuck in the era of red-coated cannons! Although there are not many foreigners, but they use the sea as a whole attack, powerful naval artillery and ground troops with the cooperation of the cold can not fight! Semi-colonial society, the root of which is to divide China's land, so that the provincial warlords are not good intentions, and each other's war will be to the colonizers to buy a lot of equipment, weapons and ammunition, so that a lot of money into the pockets of the colonizers! (The weapons they bought were also decommissioned, making the Chinese army always outclassed by the foreign colonizers in terms of equipment!) The colonizers were able to take advantage of the warlords' confusion to take advantage of the situation! The colonizers can take advantage of the warlords to take advantage of the situation and make the political situation in China even worse!