我们正处于历史上一个独特的阶段。我们从未如此清楚地意识到我们对地球所做的一切，也从未有过能力对此采取行动。
We are at a unique stage in our history. Never before have we had such an awareness of what we are doing to the planet, and never before have we had the power to do something about it.
企业最大的成本是决策慢带来的机会成本。
书籍是通往其他文化的窗户。
基本规范是预设的终极规则，根据这一规则，该秩序中的规范得以建立和废除，获得和失去其有效性。
The eagle never lost so much time as when he submitted to learn of the crow.
The interplay between discrete and continuous mathematics is where some of the most interesting problems lie.