Making something variable is easy. Controlling duration of constancy is the trick.

"The magic of a book is that it can take you anywhere, even if you're just sitting in your room."

The essence of strategy is in the activities – choosing to perform activities differently or to perform different activities than rivals.

Sustainability is not just a responsibility, but also an opportunity for innovation.

真相并不总是美丽的，美丽的话语也不总是真相。

我们不仅仅是开采石头；我们塑造社区的基础。