空容器发出的声音最大。

"The price of greatness is responsibility."

Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.

Labor is the only source of wealth.

Good means not merely not to do wrong， but rather not to desire to do wrong.

事理明白则心愈能清楚而专一，心能专一则事理愈能通达流畅。

时间是最好的作者：它总能找到一个完美的结局。