可持续性不是选择，而是矿业未来的必然要求。

理解变化的唯一方式是投入其中，随之而动，并加入这场舞蹈。

Music is reflection of self. We just explain it, and then we get our checks in the mail.

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

El arte de escribir consiste en decir mucho con pocas palabras.

成为质量的标杆。有些人并不习惯追求卓越的环境。