城市的穷人就像树的根；看不见，但对它的生命至关重要。

What we need to do is make batteries safer, more efficient, and more environmentally friendly.

我总是被那些处于边缘、与某些东西斗争的角色所吸引。

If people did not sometimes do silly things, nothing intelligent would ever get done.

每个人都是一个月亮，都有从不向人展示的阴暗面。