可持续发展不是一种选择，而是生存的必要条件。

数学的本质不是使简单的事物复杂化，而是使复杂的事物简单化。

无论代价如何，安全必须始终放在第一位。

Then I had religion, then I had a vision. I could not turn from their revel in derision. Then I saw the Congo creeping through the black, cutting through the forest with a golden track。

Trust is the currency of collaboration, and it must be earned every day.

The stock market is the only market where things go on sale and everyone runs out of the store.

A human being needs to suffercWhen one suffers， one becomes strong.