What is the sentence that expresses the author's broad mind in Yueyang Tower?

Don't rejoice in things, don't grieve for yourself.

By describing the scenery of Yueyang Tower and the different feelings brought by rainy days and sunny days, this paper reveals the benevolent heart of the ancients who "don't like things, don't grieve for themselves", and also expresses his patriotic feelings of "worrying about the world first, and enjoying the world later". The article goes beyond the narrow scope of simply writing about mountains and rivers, and combines the gloomy changes of nature, the lack of rain and shine, and the "feeling of seeing things" of "moving poets", thus focusing on discussing political ideals and expanding the realm of the article.

Creation background

This article was written in Li Qing for six years (1046). Fan Zhongyan lived in the era of internal troubles and foreign invasion in the Northern Song Dynasty, and the internal class contradictions became increasingly prominent, eyeing the foreign Khitan and Xixia. In order to consolidate the political power and improve this situation, the political group headed by Fan Zhongyan began to carry out reforms, which was later called the "Qingli New Deal". However, the reform violated the interests of the feudal big landlord class conservatives and was strongly opposed by them. The emperor's determination to reform was not firm. Under the oppression of the conservative bureaucratic group headed by Queen Ether, the reform ended in failure.

After the failure of the "Qingli New Deal", Fan Zhongyan offended the Prime Minister Lv Yijian, and Fan Zhongyan was relegated to Dengzhou, Henan. This article is about Dengzhou, not Yueyang Tower.