The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
应对不自由世界的唯一方法，是变得如此绝对自由，以至于你的存在本身就是一种反抗。
The highest art is to conceal art.
Sustainable development is not an option, but a necessity for the coal sector.
Quality is not a task; it is a responsibility.
人是非常有理智的动物，其他动物不是。