最好的歌曲来自痛苦。
The best songs come from pain.
Every challenge in mining is an opportunity to redefine our future.
What is necessary to change a person is to change his awareness of himself.
The only thing worse than training employees and losing them is not training them and keeping them.
作家要么是隐居的实践者，要么是内疚的、有过失的人。
做数学就是探索一个思想的宇宙，唯一的限制是你的想象力。