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[按:下文是邮件笔记的内容,标题是新拟的。略有删节/修订。]
The "stardards" of reseach is of four aspects, forming a graph ——
♖ ♘
♔ ♗
King represents "simplicity" while bishop is responsible to "no redundancy"; rook makes things irreplaceable while knight is of thoroughness.
---- Thoroughness is the easiest to operate.
---- Simplicity is to consider the most basic or speical things, such as numbers 0, 1, reciprocal, square, circle, etc..
---- "no redundancy" is to remove parts, operations, etc., to reach a clever thing.
---- Irreplaceability is to make things optimal, the best or No.1.
---- The four aspects share a common spirit from the different perspectives.
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