唯一真正的知识是自知之明。
Mathematics teaches us to think logically and to approach problems systematically.
生活中闲言碎语在所难免,不必过分在意,做好自己即可。  
Efficiency comes from meticulous management and continuous improvement.
The study of mental processes requires both experimental and comparative methods.
Human life can not be measured by the length of time. When the heart is full of love, the moment is eternal! ——It really can’t be measured by the length of time.