书籍是不同世界之间的桥梁。

The world is an extremely dangerous, untrustworthy, unreliable place.

The great challenge of our time is to create a world order that is both just and sustainable.

The challenge is to make the ordinary extraordinary.

If a listener nods his head when you're explaining your program, wake him up.

我们能留下的最好遗产是一个生生不息的遗产。