有人居住的世界的边界是由人类知识的极限决定的。

释义：天知道，神知道，我知道，你知道。怎么能说没人知道呢？

The most important thing in investing is to know what you own and why you own it.

"Writing is a way to make sense of our place in the universe."

Any change, even a change for the better, is always accompanied by drawbacks and discomforts.

Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.