What are some examples of "being uneducated is terrible" in history?

The Opium War is about to start, and the British have sent troops. Lin Zexu mourned Daoguang: "Wherever he went, he only used guns to strengthen the ship. Once he reaches the shore, he should have no other skills. His whole body is wrapped up, his waist and legs are stiff, and a servant can't get up. Not only a soldier can count his enemies with his hands, but also brave civilians in rural areas can kill him. Moreover, foreigners speak different languages and wear different clothes, and their eyes, nose and hair are very different from those of China people. We will work together with Qi Xin to eliminate it unless it is planted. " "In addition to the gun, the foreign army's stabbing pace is not allowed, but the legs and feet are wrapped, and the end is tight, which is inconvenient for flexion and extension. If they are more helpless on shore, it is inevitable. "This is actually a ridiculous view that was popular at that time. Foreigners can't bend their legs, so they are only good at naval battles. Once they land, there is nothing they can do. Therefore, they are not invincible.

1840, after the fall of the Sino-British War, Lin Zexu encouraged the soldiers and civilians to fight bravely. Lin Zexu also has a strange fantasy about foreigners' strong guns: "Britain will attack China by ship. If you dare to enter the inland river, the tide will ebb, the boat glue will burst, another grain will be insufficient, and the three military supplies will not continue, such as fish lying in a dry river, come to a bad end. "

What is even more peculiar is that Lin Zexu thinks that foreigners are addicted to beef and mutton. Rhubarb and tea imported from China will die of indigestion if they are not used as complementary food. In a play with Daoguang, he wrote: "Take tea rhubarb as an example. If foreigners can't do this, there will be no life." Lin Zexu also suggested that Daoguang Emperor cut off foreign trade. If China people don't sell tea to the British, the British will get sick or die of indigestion. In a document to be handed over to the Queen of England, he once again stressed: "Rhubarb, tea and shredded lake are all precious products of China. If foreign countries can't do this, they will have no life. " Today, we will think this is a joke. At that time, they were the most advanced people in our nation, the most sober people in our nation, and their understanding of the world.