在亚洲的中心，大自然展现了它最壮丽和原始的面貌。

Safety must always come first in mining operations.

 Happiness is at your feet, if only you are willing to lower your head and look for it.

I am only resolved to act in that manner, which will, in my own opinion, constitute my happiness, without reference to you, or to any person so wholly unconnected with me.

出门没有衣服，进家没有粮食，内心积有耻辱之感，就会一起来发动暴乱，而且无法禁止。 

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.

物理学和数学之间的界限并不像我们想象的那么清晰。