What poem is suitable for writing in calligraphy competition?

Generally, calligraphy competitions have themes, such as "Calligraphy and Painting Exhibition in Commemoration of the * * Year of the Founding of the Party" and "Calligraphy Competition in Celebration of the * * Year of the South-to-North Water Transfer Project". Try to find some poems, famous sayings and so on. That fits the theme. If you really can't find it, you can also write some positive and lyrical ancient poems. The inscription of the work can be interpreted as "it should be * * * * *".