MHB Maths books should be read both forwards and backwards?

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The discussion centers on the idea that mathematics should be read both forwards and backwards, a concept possibly linked to Lagrange. Participants express uncertainty about the exact phrasing and origin of this quote. There is also a reference to Christopher Marlowe's play "Faustus," which features themes of incantation and the manipulation of knowledge. The conversation highlights the importance of revisiting mathematical texts for deeper understanding. Overall, the notion of dual reading in mathematics is explored as a means to enhance comprehension.
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I'm not sure where, but I remember reading something like that somewhere. It said 'mathematics should be read both forwards and backwards' or 'maths books should be read both forwards and backwards' or some variation of that, but I'm not sure exactly. I also remember it sort of had something to do with Lagrange, but whether he's the one who said it, I don't know. Does anyone know the exact quote or the person who said it?
 
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Could you be misremembering Marlow's diabolical play:

FAUSTUS.
Now that the gloomy shadow of the night,
Longing to view Orion's drizzling look,
Leaps from th' antartic world unto the sky,
And dims the welkin with her pitchy breath,
Faustus, begin thine incantations,
And try if devils will obey thy hest,
Seeing thou hast pray'd and sacrific'd to them.
Within this circle is Jehovah's name,
Forward and backward anagrammatiz'd
,
Th' abbreviated names of holy saints,
Figures of every adjunct to the heavens,
And characters of signs and erring stars,
By which the spirits are enforc'd to rise:
Then fear not, Faustus, to be resolute,
And try the utmost magic can perform.

CB (Devil) (Devil) (Devil)
 
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This thread only works as a summary from the original source: List of STEM Masterworks in Physics, Mechanics, Electrodynamics... The original thread got very long and somewhat hard to read so I have compiled the recommendations from that thread in an online (Google Drive) spreadsheet. SUMMARY Permits are granted so you can make comments on the spreadsheet but I'll initially be the only one capable of edition. This is to avoid the possibility of someone deleting everything either by mistake...
By looking around, it seems like Dr. Hassani's books are great for studying "mathematical methods for the physicist/engineer." One is for the beginner physicist [Mathematical Methods: For Students of Physics and Related Fields] and the other is [Mathematical Physics: A Modern Introduction to Its Foundations] for the advanced undergraduate / grad student. I'm a sophomore undergrad and I have taken up the standard calculus sequence (~3sems) and ODEs. I want to self study ahead in mathematics...

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