数学的进步是通过它能解决的问题数量来衡量的。
不要盯着时钟,做它该做的事,继续前进。
【释义】:做很多事却少有成效,不如专心做好一件事情。  
The true aim of drama is to improve the morals of the audience.
做官虽然讲究才学,但还是以品行为本。 
The essence of computation is not just in the manipulation of symbols, but in the profound understanding of what those manipulations represent.