The awful shadow of some unseen Power floats, though unseen, among us.
某种无形力量的可怕阴影，虽不可见，却在我们中间漂浮。
The writer must be a free being, even if it costs him everything.
Life lessons will be presented to you in the order they are needed. Everything you need to master the lesson is within you. Once you have truly learned a lesson， you will be presented with the next one. If you are alive， that means you still have lessons to learn.
Every electron tells a story, and our job is to listen with attosecond precision.