Courtesy is lost, and seeking wild wisdom is in the people's will.

"Etiquette lost, wisdom lost to the people" means that etiquette and wisdom lost, but the people have the strength to recover.

The reason for the loss of etiquette wisdom lies in the change of social atmosphere and values. In ancient society, etiquette and wisdom were regarded as very important qualities, and people paid attention to cultivating and inheriting these qualities. However, with the development and change of society, people's values have also changed, and the emphasis on etiquette and wisdom has gradually decreased, leading to the loss of etiquette and wisdom.

But there are still some folk forces that can restore etiquette and wisdom. These people may be inheritors of traditional culture, scholars, educators or others who are interested in inheriting and carrying forward traditional culture. Through their own efforts and practice, they help people to restore and inherit etiquette and wisdom.

The enlightenment of this sentence is that we need to cherish traditional culture, pay attention to cultivating and inheriting etiquette and wisdom, and at the same time find the power to restore these qualities among the people, so that traditional culture can continue to carry forward in modern society.