世界不是一个令人愉快的地方，但它是我们唯一拥有的。

You can't manage what you don't measure.

There is no real excellence in all this world which can be separated from right living.

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them—preferably in unexpected and helpful ways.

凡是存在的事物就天然具有合理性。

《能知必能行》

事实是：自然界正在变化。而我们完全依赖那个世界。它提供我们的食物、水和空气。它是我们拥有的最宝贵的东西，我们需要捍卫它。