采矿技术的创新不仅仅是效率问题，还关乎安全和可持续性。
Memory is like the sea, throwing onto the shore what it wants to hide in the depths.
衡量一个经济体的真正成功标准是它如何为所有公民服务。
"I love to make people laugh, especially kids."
"The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success."
如果你都不相信自己，没人会相信你。