This is the well-known Sargassum nodosum.

There are short columns like algae on the beam. Why is he so wise?

Confucius said, "Zang Wenzhong (doctor Lu, surnamed Zangsun, Chen, Zhongzi, posthumous title) has a big turtle for divination, with a carved stigma like a mountain and a short column painted like algae on the beam. Why is he so wise? " Note: Cai, a turtle used for divination in ancient times. "Beautiful scenery" is to build a house for chinemys reevesii, which is beautifully decorated. Section, through "bend", means the bucket arch on the stigma.

① Zang Wenzhong: His real name is Zang Sun, and his name is Chen. Wen is his posthumous title. Doctor Lu in the Spring and Autumn Period. Gathering wealth: life, as a verb, means hiding. Cai, the turtle used by the emperor for divination. The place Cai produces soft-shelled turtles, so the big soft-shelled turtle is called Cai. Column: a bucket arch on a node or column. A short post on a beam. Algae on the mountain node refers to carving the bucket arch into a mountain shape and drawing grass lines on the tree. In ancient times, this was the way to decorate the emperor Zong Yong.

Original text.

Zang Wenzhong, Ph.D. Lu Zang, Shi Wen. Cai, tortoise. Cai is a good turtle, because the name of this chinemys reevesii is Cai. In ancient times, the undecided state affairs were divination, and turtles had aura, so tortoise shells occupied it. There are six kinds of divination turtles, and "Zhou Li" refers to six turtles, and each turtle hides a house so that the turtles can be in charge. Zang is a doctor in charge of turtles in Lu, so he said that he lives in Cai. Mountain festival, the immediate stigma is a bucket arch, which looks like a mountain, so it is called a mountain festival.

The algae in the mountain festival are all temple ornaments of the emperor, and Wenzhong applied them to the house of Tibetan turtles, which violated the system of flattering gods and ignored personnel. This is unwise, so Confucius said it was wise. Song Ru, Zhang Hengqu and Zhu all said this, and interpreted it by living in Caishan Festival. There is a saying in Xieji that "staying in Cai" means that Wenzhong is a tyrant in Cai's home, and Shanjie is another sentence, which is applied to his home and called luxury.