距离不仅仅是物理上的度量，还是社会和经济上的障碍。

可持续性不是一种选择；它是我们对后代的责任。

A miracle:an event described by those to whom it was told by men who did not see it.

在我的一生中，大自然的新景象让我像孩子一样欢喜。

We must balance the need for energy with the responsibility to protect our planet.