He was still a little worried, so he found another stone nearby and threw it hard into the middle of the marsh. He only heard a "click" and landed on the ground. He said to himself, "Hey, Lao Tzu is still very smart."

Well, poor cold man, in this place where the birds don't shit, can only talk to himself, otherwise he will stay in this place for a long time, for fear that he may not speak after going out.

Although he has tried it with stones, he is very careful to try the grass under his feet with his feet every step before he can actually step on...