质量不是一种行为，而是一种习惯。

You cannot always control what goes on outside, but you can always control what goes on inside.

Innovation in mining technology isn't optional—it's the lifeline that will determine the future of extractive industries.

The best thing about getting older is that you don't lose all the other ages you've been.

信仰是伟大的逃避，是逃避思考和评估证据需要的伟大借口。信仰是在缺乏证据的情况下，甚至可能是因为缺乏证据而相信。