What Laozi said means that in the ancient times when people's hearts were simple, there was no preaching on benevolence, righteousness and morality, and there was no concept of "benevolence, righteousness and morality". People naturally lived in benevolence, righteousness and morality. But when someone in the world starts to preach benevolence, righteousness and morality, the world must have lost benevolence, righteousness and morality. The more people work hard to preach benevolence, righteousness and morality, it means that the world is getting farther and farther away from benevolence, righteousness and morality.