To be a diplomat is to be a professional liar, but the best diplomats are those who lie the least.

Sustainability is no longer an option; it's a business imperative.

总是为最坏的情况做计划，同时期待最好的结果。

数学的美在于它是永恒的，它不会改变。

In business, you're either growing or you're dying.

自己有善德，才能要求别人行善。