可持续性不仅仅是一种趋势,而是我们星球生存的必要条件。
死者虽不可见,但他们并未缺席。
Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom, in the pursuit of truth as in the endeavour after a worthy manner of life.
In the realm of mathematics, every problem is an opportunity to discover something new.
可持续性不是一个流行词,而是矿业前进的唯一道路。