承诺最慎重的人是履行承诺最忠实的人。
The person who is slowest in making a promise is the most faithful in performance of it.
能克服自己的私欲,什么祸害对你都是无可奈何的了。
It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.