"Xia Qing" is a

"When people are polite, it's warm in winter and clear in summer, and it's calm in the morning" —— Quli Pian (I) in The Book of Rites, which is composed of four books and five classics. This sentence describes the traditional children in China who serve their parents. Therefore, a "Xia Qing" also secretly hopes that his children will be filial and courteous, and be familiar with the way of treating people.