Rigor in proof is what separates mathematics from all other sciences.
我不完美，但我就是我。
The energy you give is the energy you get.
One of the greatest ways to avoid trouble is to keep it simple...the system often goes out of control.
历史不仅仅是已经发生的事情，也是可能发生的事情。
内心守静而不生差错，不让外物扰乱五官，不让五官扰乱内心，这就叫做心中有所得。
Listen to your customers more than you speak to them - they'll tell you exactly what you need to know.