质量会被长久记住，而价格很快被遗忘。

关键是不断进步，不断奋斗，不断相信。

Innovation in mining technology isn't just about efficiency—it's about safety and sustainability.

The individual has become a mere cog in an enormous organization of things and powers which tear from his hands all progress, spirituality, and value in order to transform them from their subjective form into the form of a purely objective life.

智慧是适应变化的能力。