我们生活在一个影子的世界里，我们所谓的现实只是影子的影子。
"To travel is to discover that everyone is wrong about other countries."
The measure of success is not just in yields, but in lives improved.
"The most important thing is to stay focused on the mission."
一本书可以是一个朋友、一位老师和通往另一个世界的门。