"Zhuangzi Qi Theory of Things" contains: the former Zhuang Zhou dreamed of a butterfly, a lifelike butterfly, self-metaphor for the right ambition, I don't know Zhou also.

Oh Ran Jue, then Yu Ran Zhou also.

I don't know that Zhou's dream is a butterfly, and a butterfly's dream is Zhou's?

Zhou and butterflies must be separated, which is called materialization.

Note: Zhuang Zhou dreamed that he had become a butterfly, fluttering, very relaxed, Zhuang Zhou completely forgot that he was originally Zhuang Zhou.

After a while, Zhuang Zhou woke up, frightened, and very surprised and confused about himself or Zhuang Zhou.

Zhuang Zhou thought about it seriously and thought about it, I don't know if Zhuang Zhou dreamed of becoming a butterfly, or if a butterfly dreamed of becoming Zhuang Zhou.

In the end, Zhuang Zhou said: "There must be a difference between Zhuang Zhou and butterflies, which can be called the alternation and change of crops and me." ”。

............

"Students, when we say that the world exists, in fact, we just say that we recognize the assumptions of its existence, just like Zhuang Zhou's dream of butterflies, as a person's own may really be the dream of this butterfly, although this is unfalsifiable, but if we assume that we think Zhuang Zhou is a butterfly, then we can explain the whole event, so the world may be just a dream or a hypothesis, and the world we live in is not a real world. "On the podium of an elective course at a key university in central China, an old professor is writing a sermon.

"Hahaha... Many students in the audience burst into laughter.

These first-year students actually don't want to take such a meaningless metaphysical elective course, but they are forced to get credits.

"Professor, I have a question, if the world is just a hypothetical dream, as you say, and unreal, then how can we explain some real common sense, such as 1+1=2 mathematics?

"This classmate asked well, can you introduce yourself?" the old professor asked with a nod of satisfaction.

"Hello professor, I am a first-year student of business management in the Department of Economics and Management, my name is Qi Yu. ”。

"Okay, for your question, then let me ask you a question, answer your question dialectically, the surface is made up of countless lines, this is recognized by everyone, right, and the line is composed of countless points, right, what about the point? Its definition in Euclidean geometry is that there is only a position in space, there is no size of the figure, the point is the basis of the whole Euclidean geometry, Euclidean is only very vague to define the point as 'something without parts', since there is no size and no space thing, why can we see it? Isn't that very contradictory? So maybe 1+1=2 might just be a hypothesis, just a hypothesis to construct our world. After speaking, the old professor unscrewed the thermos cup and took a deep sip of warm tea.

"I don't seem to understand, but in general, I still don't quite understand what you mean and what you mean. Qi Yu said blankly.

"Hey, hey... It's normal not to understand, maybe you've experienced a similar experience yourself, and maybe you'll understand more. ”。

"Experience? can also experience such a mysterious thing?".

"There is no absolute impossibility, it's just that our thinking is not broad enough to think of, metaphysics may just be mysterious, but it doesn't mean it's illusory, hehehe. The old professor said.

After speaking, the old professor smiled mysteriously again.