It is not enough that we do our best; sometimes we must do what is required.
仅仅做到我们的最好是不够的,有时候我们得达到要求。
True leadership means making tough decisions for the right reasons.
采矿中的风险管理不是要消除所有风险 - 那是不可能的 - 而是要明智地理解和减轻风险。