从让一个人生气的事情大小就能看出一个人的价值。
真正的智慧在于了解自己的无知。
采矿技术的创新不是一种选择，而是我们对工人和环境应尽的义务。
乐观是正常的，但一些幸运的人比我们其他人更乐观。
Every artist dips his brush in his own soul, and paints his own nature into his pictures.
“如果你活到100岁，那么我希望活到100岁减去1天，这样我的生活中就不会失去你啦。”
The world is full of obvious things which nobody by any chance ever observes.