善不是出自内心的，不能保留；行为不能从自身辩明的，不能去做。善不是出自内心的，只能够勉强支撑一时，必然不能长久。所以也只能使伪善。

"I think it's important to take risks in filmmaking. If you're not taking risks, you're not growing as an artist."

形式化方法的美在于它们能够提供关于系统行为的绝对保证。