Sustainable development is not a choice, but a responsibility.

"The future is about creating opportunities for all."

Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.

孩子从你的行为中学到的比从你的教导中学到的更多。

技术积累是一个长期过程，不能急功近利。