All virtue is the foundation, and filial piety is the first. What does this sentence mean?

Wan Shande is the foundation, and Bai Xingxiao is a poem written by Li Baoku, editor-in-chief of China Filial Piety Story.

Filial piety is the traditional virtue of the Chinese nation. To be a good person, a kind person and a successful person, we must be filial first. Losing filial piety is like a person losing his heart, only one body stands in the world and loses the value of life, let alone standing tall and making a difference.