Your most unhappy customers are your greatest source of learning.
没有无聊的主题，只有无聊的作家。
Safety is not just a KPI, it's the foundation of everything we do in mining industry.
I am not apt to follow blindly the lead of other men.
In the world of mathematics, imagination is more important than knowledge.
心灵是一个时间上的过程序列。
我不是来追求完美的，我是来展现真实的。
The artist is a child of his time, but woe to him if he is also its disciple, or even its favorite.