Legal analysis: Article 7 of the Civil Code stipulates the principle of good faith, that is, the principle of honesty and trustworthiness. The principle of good faith requires all civil subjects to uphold the principle of honesty, goodwill and trustworthiness when engaging in any civil activities, including exercising civil rights, fulfilling civil obligations and assuming civil liabilities. The principle of good faith is of great significance for building a good faith society, standardizing economic order and leading social fashion. Honesty, that is, loyalty and honesty, is to be loyal to the true colors of things, not to hide your true thoughts, not to hide your true feelings, not to lie, not to cheat, and not to deceive others with ulterior motives. Keeping promise means keeping promise, stressing credibility, keeping promises, being loyal to one's own obligations and promising others' things.

Legal basis: Article 7 of the Civil Law of People's Republic of China (PRC) stipulates that civil subjects should follow the principle of good faith, adhere to good faith and keep their promises when engaging in civil activities.