The central sentence of "Dedication and Happy Industry" is But I firmly believe that the four words "dedication and happy industry" are the only way to live human life.

The full text of "Dedication and Happy Industry" can be divided into three parts. The first part (paragraph 1) raises questions and reveals the center of the entire discussion - dedication and happiness.

The second part (paragraphs 2 to 8) discusses the importance of dedication and enjoyment of work: the necessity of having a career; the importance of dedication; the importance of enjoyment of work.

The third part (paragraph 9) summarizes the full text and encourages people to be dedicated and happy in their work. The full text has a clear purpose, clear levels, popular language, and short text with a long meaning.

Appreciation of "Dedication and Joy"

This article is clear and vivid, firmly grabbing the audience's attention. When quoting famous quotes from ancient books, the author uses popular spoken language to give vivid and interesting explanations. At the same time, he combines the situation of the speech and pays attention to communicating with the audience on the spot. In addition, the use of several questions appropriately combines several points. The arguments are refined to help attract the audience's attention and thinking.

This article contains both calm analysis and rationality, as well as sincere and passionate emotions, which makes the speech both persuasive and inspiring.