解释:货卖完了才知道不足,是由于不懂得计量;事情结束了才知道有余,是由于不懂得调节。
学校应该是一个微型社区,一个萌芽中的社会。
Leadership is about making tough decisions and standing by them, even when they are unpopular.
"In the end, we will remember not the words of our enemies, but the silence of our friends."