The defining characteristic of pessimists is that they tend to believe bad events will last a long time, will undermine everything they do, and are their own fault.

全息原理表明，空间区域的信息内容可以编码在其边界上，就像全息图一样。

Physics is not just a science, it is a way of thinking about the world.

The past is never dead. It's not even past.

If you're not listening to your customers, you're already falling behind.

The most important thing in communication is hearing what isn’t said.