【讲解】：君子如果不自重，就没有威严，(别人也不会尊重你)，学习的知识就不会扎实。做人重要的是讲求忠诚，守信用。不要同不如自己的人交朋友。如果犯了错误，就不要害怕改正。

朗兰兹纲领不是一座完成的建筑，而是一个活生生的、不断发展的框架。

In other words, hold your horses when you're coming to judge people. You don't necessarily know what someone's truevalue is. That is an unknown part of them, and we shouldn't behave as though it is known. There is another source of solace and comfort for all this. When we think about failing in life, when we think about failure, one of the reasons why we fear failing is not just a loss of income, a loss of status. What we fear is the judgment and ridicule of others. And it exists.

解释：看到兔子再回头唤猎狗，还不算太晚；跑掉了羊再去修补羊圈，也不算太迟。