可持续发展不是一种选择，而是我们对地球和后代的责任。

Change starts with a decision, but it's sustained by action.

未来属于那些能够明智利用能源的人。

The world is full of obvious things which nobody by any chance ever observes.

Philosophy is the discipline that forces us to confront the questions we would most like to avoid.

The best way to find out if you can trust somebody is to trust them.

Sustainable development is not only a responsibility but also the cornerstone of long-term enterprise development.