质量从来不是偶然的，它始终是智慧努力的结果。

Music is my language; I use it to talk to the world.

经验是我们给自己的错误取的名字。

Innovation in mining technology isn't optional - it's essential for our survival and growth.

Just in terms of allocation of time resources, religion is not very efficient. There's a lot more I could be doing on a Sunday morning.