Who first put forward the phrase "a sense of security for the elderly is the traditional virtue of the Chinese nation"?

According to the relevant information of Baidu question bank, Mencius said when commenting on Mohism's "benevolence without attack" The original text is "old people and old people, young people and young people, loneliness and loneliness are all supported." In fact, in a certain sense, it can also be said to be extracted from Mohist thought.

Mencius (about 372 BC-289 BC), a famous philosopher, thinker and educator in the Warring States period, was a representative of the Confucian school after Confucius and before Xunzi, and was also called "Confucius and Mencius" with Confucius.