C903

The commoners had a saying, don't talk about it, it's easy to talk about it.

This meant that he couldn't be too cocky. For example, someone had flaunted to others that he was in good health and hadn't had a cold for two years. In the end, he had a cold within two days, and it was a severe one at that.

It was purely the common people's experience. To ask what exactly the reason was