Efficiency in mining comes from continuous improvement, not just big breakthroughs.
采矿效率来自于持续改进，而不仅仅是重大突破。
We don't inherit the earth from our ancestors; we borrow it from our children—this must guide every business decision.
毕竟，生活从来不像人们想象的那么快乐或悲惨。
The quality of a country's institutions is the single most important determinant of its long-term economic performance.
