光波，无论是以太波还是其他波，在所有情况下都是时间上的周期性过程。

"The most common way people give up their power is by thinking they don't have any."

The human being is a most curious creature. He thinks he has a soul, but all he has is a body.

Advice like these are not laws. They are like hats. If one doesn’t fit， try another.

黄莺和鲜花尚且担心春光流逝，怎么可以白白虚度大好时光？

Entrepreneurship is about solving problems continuously, there are no shortcuts.

Of all men's miseries the bitterest is this: to know so much and to have control over nothing.

最好的想法往往来自最意想不到的地方。