What expression techniques are used to express the worries of the world first and then the happiness of the world?

The expression techniques of contrast, duality and borrowing scenery to express emotions. "Be worried about the world first, and be happy after the world is happy" comes from Fan Zhongyan's "Yueyang Tower". This sentence uses contrast, duality and the use of scenes to express emotions. This sentence contrasts "worry" and "joy", which reflects the author's great ambition and mind to put the interests of the country and the nation before himself and to serve the country and the people. At the same time, the contrast between the front and back of this sentence is neat, making its semantic expression clearer and more powerful.