The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

可持续发展不是一种选择，而是我们对地球和后代的责任。

未来属于那些能够驾驭数据力量的人。

Leadership in mining means making tough decisions for long-term benefits.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when to be obeyed.