Mathematical Prairie Fire: Coming to the Ancient Elven Land

The day Shen Yan fell into the Eternal Night Sacred Forest, he only had a hooded sweatshirt, a pen, and a piece of printing paper using penicillin rough extraction technology. This is Astraea. Elves are hunting in the woods, dragons are sleeping on the mountain tops, and the bells of the Holy See have been ringing for a thousand years. The serfs dug in the soil for food, and when the plague came, whole villages died, and less than one-twentieth of the people were literate. He has no system, no fighting spirit, and no godhead. He has proven knowledge: boiling water can save lives, soap can wash hands, isolation can stop the plague, and lime can disinfect. "Someone found these where I came from." He said to the silver-haired elf, "I'll tell you now." Leia drew her bow in three hundred years and saw such a human being for the first time. He does not hold a sword, does not kneel to a god, and does not bow to any crown. He squatted by the fire and stirred the water in the clay pot, saying that he would make medicine available to everyone when they were sick. She thought, this man is talking crazy. But she didn't leave. The truth is sown by me, and prosperity is created by all sentient beings.