数学中最深刻的洞见往往来自意想不到的类比。
The most profound insights in mathematics often come from unexpected analogies.
Sustainability in mining isn't an option—it's our license to operate.
过去是一个异国，但我们都是它的公民。
I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
【译文】 孔子说：“君子心怀仁德，小人心怀家乡；君子心怀法制，小人心怀实利。”