I'm mentioning all this -- I'm mentioning all this because I think this is not merely a personal problem; you may think I'm wrong in this, but I think we live in an age when our lives are regularly punctuated by career crises, by moments when what we thought we knew -- about our lives, about our careers -- comes into contact with a threatening sort of reality.

Innovation is not just about creating something new; it's about improving what already exists.

报纸的工作是安慰受苦的人，折磨舒适的人。

I don’t think you should ever feel like you’ve achieved everything. You always have to keep pushing.

安全必须始终是采矿作业的首要任务。

代数分析很快让我们忘记了研究的主要对象，将注意力集中在抽象的组合上，直到最后我们才回到最初的目标。