It's Still Dark: Immortality

I won't age. Three thousand years ago, Laotai picked me up on the steps of the observatory. He said: Look clearly and write it down so that others will not forget it. I remembered. Bamboo slips from Xia and Shang Dynasties, wooden slips from Zhou and Qin Dynasties, and scrolls from Han, Wei and Jin Dynasties. Mingtiao, Muye, Lishan, Chibi, and Wuzhangyuan. Bigan's Qiqiaoxin, Sima Qian's castration, and Zhuge Liang's last light. For three thousand years, I have watched with my own eyes one dynasty after another from its establishment to its collapse, and watched the heroes from high spirits to mountains of bones. They are all dead. I'm alive. The wooden box on my back contains all of this. But there is one thing that I have never written down on any bamboo slips.