Plum, orchid, bamboo and chrysanthemum refer to plum, orchid, bamboo and chrysanthemum, which are called four gentlemen, representing the quality of pride, quiet, strong and light respectively.

1. Plum: plum blossom is the first of the four gentlemen. It opens in the cold. After blooming and withering, it is beautiful and refined, but it does not compete with other flowers. Therefore, it has always been used as a symbol of indomitable, unyielding and unyielding noble character.

2. Orchids: orchids grow in secluded places, with light colors, symbolizing the alienation of dirty politics, to preserve the quality of their good character.
3. Bamboo: Bamboo doesn't wither in winter. It's upright, unassuming, modest, and symbolizes the refined people who are different from the common people.

4. Chrysanthemum: chrysanthemum is not only beautiful and elegant, but also has the spirit of fearing the cold and fighting against the snow.