The most important thing in mathematics is to ask the right questions.
當(dāng)不同的思想?yún)R聚在一起時(shí)，創(chuàng)新就會(huì)發(fā)生。
Innovation in coal mining isn't just about extraction—it's about doing it smarter, safer, and with greater respect for the environment.
The best way to appreciate your job is to imagine yourself without one.