"To be a writer is to sit down at one's desk in the chill portion of every day, and to write; not waiting for the little jet of the blue flame of genius to start from the breastbone."

解析：念念流动即是道，而不是一念不生。不拒迎，念即流动。

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。