Material 1 explains: A dishonest person can deceive others for a while, but cannot deceive them forever. Once he is found out, it will be difficult for him to gain a foothold in society, and the result will be harm to others and himself;

Explanation of Material 2: Promise is a serious matter. Promising easily but not keeping it is a bad quality. When you are not sure about promising others, do not make promises easily. Once you make a promise, you should work hard to fulfill it.