2. Etiquette is a subtle thing, which is not only indispensable for people to communicate with each other, but also can't be too concerned. bacon

3. Li is so suspicious, hesitant, different, and knows right from wrong. -Jason Wu

Politeness and consideration cost nothing, but are more valuable than anything else. -Spain

Politeness is to human beings what heat is to candles. -Schopenhauer

6. Politeness brings civilization, warmth and happiness to everyone. -Noen Pierre

7. Politeness is the easiest and most precious thing to do. -Gonchard