每张皮革都有潜力,我们的责任是负责任地发掘它。
每个数学问题都有一个解决方案;这只是找到正确视角的问题。
For in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's futures. And we are all mortal.