If people did not sometimes do silly things， nothing intelligent would ever get done.
如果人们有时不做愚蠢的事情，就不会有聪明的事情发生。
以环境为代价的短期收益终将导致长期损失。
It is greed to do all the talking but not to want others to do the talking after one has listened.
相信生活，它给人的教益比任何一本书籍都好。