Change is hardest at the beginning, messiest in the middle, and best at the end.
解释:君子有三件值得可惜的事:一辈子不学习,是第一件可惜的事;一天无所事事,是第二件可惜的事;一个人的名声败坏,是第三件可惜的事。
A man who does not keep his word is no man at all.