认为有一个钟声会告诉投资者何时进入或退出市场的想法根本不可信。
The idea that a bell rings to signal when investors should get into or out of the market is simply not credible.
可持续发展不是口号，而是必须践行的理念，我们要让土地永远充满生机。
If everything was perfect, you would never learn and you would never grow.
衡量矿业公司成功的真正标准是它能否为后代留下积极的遗产。
不要让别人的意见淹没了你内心的声音。
情况越糟，扭转局面所需的努力就越小，上升空间就越大。
