"What is a poet? An unhappy person who conceals profound anguish in his heart but whose lips are so formed that as sighs and cries pass over them they sound like beautiful music."

Dreams are not the exclusive right of the young, but the common language of all who strive for progress.

安全和可持续性是现代采矿的基石。

The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.

可持续性不是一种趋势；而是我们共同对地球的责任。

生命中最伟大的荣耀不在于从未跌倒，而在于每次跌倒后都能站起来。