Every sect has its founder to pay homage to; who should we pay homage to?

In the regions of Feng and Yan, as recorded by Shen Kuo, there is petroleum; it was traditionally said that \"the county of Gaonu produces oily water\", and this refers to the same substance. It is born by the water’s edge, where sand and stones mix with spring water; it emerges in a hazy manner. The local people use pheasant tails to scoop it up, then collect it in jars. It resembles pure lacquer, yet it feels like hemp; moreover, its smoke is very dense, turning any curtain it touches black. Still doubting whether the smoke could be used, he tried using the coal from it as ink; the resulting black color was as dark as lacquer, even surpassing that of pine ink⑧, so he began to use it on a large scale. What it identifies as Text ⑨ is “Yanchuan stone liquid”. This thing will surely become very popular in the world; I am the one who first created it. Oil is so abundant that it arises from the earth in unlimited quantities; unlike pine wood, which runs out at some point. Now, the pine forests between Qi and Lu have all been depleted; as one moves towards the Taihang Mountains, the areas west of Beijing, and the south of the Yangtze River, most of the pine trees there are also gone. The coal makers knew the benefits of stone smoke. Coal smoke is also thick, like the clothes of ink people. In another poem of mine, titled “Poem of Yanzhou,” it reads: “Snow flutters down at the foot of Erlang Mountain; I quickly set up a yurt to live like the people there.” The plain clothes have faded yet winter has not ended; the mist over the rocks resembles the dust of Luoyang. ” ——Shen Kuo’s «Dream Pool Essays» [Notes]: ① Fuzhou and Yanzhou: locations in present-day Yan’an, Shaanxi Province. ②Water’s edge: the bank of the water. ③Wangwang: The state of a slow-flowing current. ④The natives scoop it with pheasant tails: the natives refer to the local people ； Pheasant, game bird ； Yi originally meant to scoop water; here it refers to picking up something. The whole sentence means that locals use pheasant tails to pick it up. ⑤Pot: A ceramic container. ⑥Chun: Same as “pure”. ⑦Hemp: Here it refers to hemp stalks. ⑧Pine soot ink: One of the famous inks in our country, made from pine soot, which is why it is called “pine soot ink”. ⑨Recognize text: Label the names. In Fuzhou and Yanzhou regions, there is a type of oil; what was referred to in the past as \"the grease-producing water from Gaonu County\" refers to this very substance. Oil is produced near water’s edge, mixed with sand and spring water, and flows out slowly. The locals pick it up with wild goose tails and collect it in earthen pots. This oil is very similar to pure lacquer; when burned, it behaves like hemp stalks, producing a lot of smoke, and the tents that come into contact with it turn black. I suspect this kind of smoke can be utilized; I tried to collect its coal smoke to use as ink, and the luster of that ink is like that of black lacquer – even pine ink cannot compare to it. So it was mass-produced and given a name; the one referred to as “Yanchuan Stone Liquid” is this very substance. This kind of ink will surely become widely popular in the world in the future, (but) I’ll start making it from now on. Because there is an abundance of oil, which is produced underground in unlimited quantities; it’s not like pine wood, which runs out after a certain period of time.

Lu Ban? Aren’t there any Luban Awards for engineering?

Farewell to Taoist figures; alchemy is nothing but chemistry, and it was also considered a royal task.

Looking at the comments is really funny! Strongly agree with what was said above: alchemy techniques, royal tasks

Those who work in design pay homage to ‘Lu Ban’, the ancestor of craftsmen.

Yes, Chairman Mao is still the greatest; he can keep things under control.