The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

我不需要理由去变得伟大。

我不是冠军，我是挑战者。

城市是人类最伟大的发明。

I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.

时间从我们头顶飞过，但留下了它的影子。