圆的周长大于任何内接等边多边形的周长,小于任何外切多边形的周长。
Growth comes from pushing boundaries.
I'm a very lucky person. I get to make movies for a living, and I get to make the movies I want to make.
变革的最大障碍不是技术;而是对离开熟悉事物的恐惧。
You can't please everyone, so just be yourself.