金银像其他商品一样具有内在价值，这不是任意的，而是取决于它们的稀缺性、获取它们所耗费的劳动量以及生产它们的矿山所投入的资本价值。

安全生产是矿业企业的生命线，必须常抓不懈。

The act of reading is an act of rebellion against the limits of time and space.

The desert could not be claimed or owned–it was a piece of cloth carried by winds, never held down by stones, and given a hundred shifting names.

你注定成为的那个人，就是你决定成为的那个人。

行业和政府之间的合作对于实现我们的气候目标至关重要。