When you get a thing the way you want it, leave it alone.
如果事情运转良好。让它转着。
译文：善于创始的人不一定完成得很好，有个好开头的人不一定有好结果。
在了解物理力、它们的规律及相互关系之后，接下来是它们起源的问题。
The complexity of things—the things within things—just seems to be endless. I mean nothing is easy, nothing is simple.
You know what it’s like to wake up in the middle of the night with a vivid dream? And you know that if you don’t have a pencil and pad by the bed, it will be completely gone by the next morning. Sometimes it’s important to wake up and stop dreaming. When a really great dream shows up, grab it.