The greatest risk is not taking one.
出自北齐·颜之推《颜氏家训·勉学》。不得，不能、不可。雌黄，矿物名，可作颜料，古代用以涂改文字，后引申为信口更改、随便乱说。没有读够一定数量的书，对前人的见解没有彻底了解，是不能随便乱下结论、乱发议论的。书要多读、话要谨慎；应当谦虚向学，不可妄自尊大。
阅读教会我们的第一课是如何独处。
Technological innovation in mining isn't about replacing people, but about making their jobs safer and more productive.
Guilt is like a bag of bricks. All you have to do is set it down.
真相总是复杂的，而且很少是纯粹的。
Train people well enough so they can leave, treat them well enough so they don't want to.