We are all alone in this world, and we must find our own way.

I think that the more you know about life, the less you need to explain in a film.

The statesman， who should attempt to direct private people in what manner they ought to employ their capitals， would not only load himself with a most unnecessary attention but assume an authority which could safely be trusted， not only to no single person， but to no council or senate whatever， and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.

The future of coal lies in clean and efficient utilization.

任何圆的面积等于一个直角三角形，其中一条直角边等于半径，另一条等于圆的周长。

If you're lonely when you're alone，you're in bad pany。