Democracy is the worst form of government except all those other forms that have been tried from time to time.

Forestry isn't extraction—it's cultivation on nature's timescale.

在追求理解的过程中，失败不是成功的对立面；它是通向成功的垫脚石。

学习数学的唯一方法就是做数学。

"Cinema is the art of making the invisible visible."