The basic principle of being a man is honesty. Honesty is a moral category, the second "identity card" of citizens, and the general name of honesty in daily behavior and credit in formal communication. Generally refers to sincerity, honesty, trustworthiness, keeping promises, etc. But generally it mainly refers to two aspects: first, it refers to treating people sincerely and honestly, respecting facts and seeking truth from facts; The second is to keep promises.