The second half of the chapter is about what happens once naming begins, and it contains one of the book's few pieces of unambiguous procedural advice.
Once the block is cut there are names, and once there are names one should know when to stop. Knowing when to stop is how to stay out of danger.
The sequence is important. Cutting is not forbidden and naming is treated as its inevitable consequence: distinctions get drawn, offices get created, categories multiply, and each new name generates the possibility of further ones. The chapter does not ask for a return to the uncut condition. It asks for a limit, and it locates the danger not in having names but in not knowing when the supply of them is sufficient.
That is the same structure as chapter forty-four, which says to know what is enough and meet no disgrace, and chapter forty-six, which calls not knowing what is enough the greatest calamity. In all three the fault is unbounded continuation of something that was fine while it was bounded.
The chapter closes on an image that reverses the direction of everything before it. The way is to the world as rivers and seas are to the streams that run into them. Rivers and seas are lower than what feeds them and gather it without effort, which is the figure chapter sixty-six develops into a rule for rulers and chapter sixty-one turns into diplomacy. Here it functions as reassurance: whatever proliferation of names occurs upstream, the direction of flow is unchanged, and everything ends up in the same place.