生命太短暂,不要在早晨醒来时带着遗憾。
Every mathematical problem has a solution; you just need to find the right perspective.
The love for all living creatures is the most noble attribute of man.  
通常,我们只看见我们正在寻找的东西,有时甚至凭空就能看见。
A sustainable coal industry is possible if we commit to the right technologies.