The true value of a mining company lies in its ability to balance profit with environmental stewardship.
It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.
每张皮革都承载着两个历史：动物的生命和制革者的遗产。我们对两者都负有责任。
Happiness is a choice, not a result.
We must always question our assumptions and be willing to revise our theories in light of new evidence.