All right. If the derivative is small, it's not changing, maybe want to take a larger step, but let's not worry about that all right?

好，如果导数很小的话，函数就基本没什么变化,可能我们就想把步子迈大一点儿了,但是别为这个担心？

麻省理工公开课 - 计算机科学及编程导论课程节选

The Soul. Look on that fire, salvation walks within.

灵魂：看着那火焰，拯救在其中迈开步子。

耶鲁公开课 - 现代诗歌课程节选