Reason one: Lao Tzu, the great Taoist priest in Li Er, said, "I have three treasures, one is kindness, the other is frugality, and the third is not daring to be the first in the world." Laozi is a great advocate of caring for public property. As we can see above, "goodness" is one of the magic weapons in Laozi's three treasures. Sabotage runs counter to Laozi's viewpoint, which is obviously undesirable and shameful.

The second reason is that Lao Dan, the old gentleman of Taishang, said: "Serving literary talent, wearing swords, eating and drinking tired, saying it is stealing, saying it is boasting, not true!"

From the "carrying a sword" in this sentence, we can see that Lao Tzu thinks that destroying public property is a thief-like behavior, and Lao Tzu is very opposed to destroying public property. "Non-Tao is also true" has to remind future generations to form a good habit of caring for public property, which is in line with the avenue, otherwise it is against the avenue.