Every lump of coal we mine keeps the lights on in someone's home.

The most important tool in science is not the microscope, but the mind.

Strengthen international cooperation to promote the improvement of technology and management in the coal industry.

他的诗，如同几何圆规般，画著圆，时而亲密贴近，时而广及全球，唯一不变的是，圆规的尖端总是插定在囚室里。