What are the propaganda slogans about civilization?

civilize your language and elegant your manners.

in a flash, civilization has been lost.

the cultivation of temperament is not for others, but to enhance one's ability to live.

politeness is the key to human beings.

Smile is our language and civilization is our belief.

Politeness is the easiest thing to do and the easiest thing to ignore, but it is the most precious thing.

courtesy and civilization are the golden keys to our place.

Birds fly freely because of their wings, flowers are lovely because of their fragrance, and the campus is more advanced because of civilization.

School is a place to learn, and civilization is the foundation of success.

pick up a piece of paper, and it is your own spirit that is pure;

A stain that is intentionally erased purifies your soul.

did you smile today? Did you say hello? Have you been polite? Did you help others? "

you left quietly, just as you came quietly.

clean clothes, dignified appearance and elegant manners.