可持续发展不是一种选择；它是我们对后代的责任。
Sustainability is not an option; it's a responsibility we owe to future generations.
"The world is a book, and those who do not travel read only one page."
我不是男孩，我是女孩。
历史不是过去，而是一张从特定视角绘制的地图，对现代旅行者有用。