The title shows that the title of the article is "Talking about backbone", and then directly puts forward the central argument of this article: we China people have backbone.

Quoting Mencius' words to explain what is "backbone" lays a solid theoretical foundation for the following narrative. These three sentences of Mencius run through the whole text.

In this paper, examples and reasons are used to demonstrate that Wen Tianxiang would rather die than surrender, the poor refused to eat the food he got, and Wen Yiduo was angry with the gun, which strongly demonstrated the view that "we China people have backbone" and further enhanced the persuasiveness of the article.

In fact, this question will have completely different answers from different aspects. What do you need?