"The soul is not a thing, it is a quality or aspect of a thing, and it is the quality of a thing that is most precious."

Never let your sense of morals prevent you from doing what is right.

Profit is not the legitimate purpose of business. The legitimate purpose of business is to provide a product or service that people need and do it so well that it's profitable.

Risk management in mining isn't about eliminating all risks - that's impossible - but about understanding and mitigating them intelligently.

我是自己心灵的囚徒，但艺术让我自由。

完美数如同完美的人一样稀少。