In this land of Beijing, filial piety culture prevails. "Filial piety fills the capital with morality and nourishes people's hearts" is a slogan, which means that in this land of Beijing, filial piety culture prevails, people put filial piety first and morality first, forming a good social fashion and moral level. At the same time, this sentence also emphasizes the influence of filial piety on society and people's hearts. Only by adhering to filial piety and attaching importance to morality can we truly achieve "filial piety and morality fill the capital and moisten people's hearts."