The Principle of a Philosopher by Eternal Fool “Asley”


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When he was young, he had failed at the Magic Academy and was looked down by others.

However by chance, he discovered a mythological medicine, so he obtained an immortal body.

In order to get revenge on the people who made fun of him, he began researching magic and magical artifacts different from the academy. After 5000 years of research, he has become an ancient magic user before he noticed. 

The people he was seeking revenge were long gone, losing his purpose, Asley went on a journey to see the world after 5000 years with his familiar Pochi.

With an unexpected turn of events after helping many humans, he is now living at the magic academy.

A 5000 year old man with a young appearance Asley, how will he live his second life’s youth?

Associated Names
One entry per line
Yuukyuu no Gusha Asley no, Kenja no Susume
Related Series
Monogatari no Naka no Hito (2)
Ore wa LV99999, Shikashi, Ore no Tokei ga 1 (1)
The Last Surviving Alchemist Wants to Live Quietly in the City (1)
While Killing Slimes for 300 Years, I Became the MAX Level Unknowingly (1)
Recommendation Lists
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  2. Novels Worth Reading
  3. Visual Adaptation
  4. Adapted to manga/webtoon

Latest Release

Date Group Release
06/05/20 Divine Dao Library c82
06/04/20 Divine Dao Library c81
05/29/20 Divine Dao Library c80
05/28/20 Divine Dao Library c79
05/22/20 Divine Dao Library c78
05/21/20 Divine Dao Library c77
05/15/20 Divine Dao Library c76
05/14/20 Divine Dao Library c75
05/08/20 Divine Dao Library c74
05/07/20 Divine Dao Library c73
05/01/20 Divine Dao Library c72
04/30/20 Divine Dao Library c71
04/24/20 Divine Dao Library c70
04/23/20 Divine Dao Library c69
04/17/20 Divine Dao Library c68
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8 Reviews sorted by

Nvelist rated it
April 6, 2018
Status: c6
I must say not bad. Although the title really indicate the MC is a fool. He is still smart, a strategist and calculated.

Always bantering with his familiar Siberian Husky Pochi but all fun and laughs even in the face of dangers.

A real slowpoke towards learning but never gives up even 5000 years passed.

I give this 8 out of 10 since MC is pretty slow towards change and realization. But still good as it gives a broader scene for him to regained his lost humanity of values, kindness, thoughtfulness, fairness and... more>> etc.. Over the 5000 years of his isolation from the rest of the world.

A worthy story. <<less
34 Likes · Like Permalink | Report
YeYueLiang rated it
June 23, 2018
Status: c7
very funny.

I like the MC its not the typical good boy, also all indicate he Is a fool... I wait and see how he evolves. Well its very fuuny...

The familiar and MC combination form a good environment :3

I like the story and hope for More releases :3
30 Likes · Like Permalink | Report
jpmrblood rated it
June 2, 2019
Status: c12
This is a unique translating strategy. The translator brought the novel and the comic as one reading content. It made the story cohesive.

I just need to get used to switch between reading comic bubble and reading the novel. Just getting used with reading from right to left in comic mode. Then, read left to right in novel.

A new experience for reading habit.

I give kudos to the translator's effort. The story is nice. The language is good.
26 Likes · Like Permalink | Report
Shoji rated it
October 26, 2019
Status: c358
Do keep in mind that I've read ahead a few volumes as of writing this review.

I must say, this series as a whole is excellent, though individual books may not feel like much because of the relatively slow pacing. It starts off a little slow and lacking in direction, but subtly introduces plot threads early on and slowly addresses them as it goes. Almost every character is important in some way, and they all have their own stakes and motivations in the big picture.

However, the older translation (by Estelion's Secret... more>> Imouto) is absolutely horrible. It's basically barely edited MTL that becomes a poorly disguised translation of the manga a few chapters in.

On the other hand, the newer translation (by Divine Dao Library) is wonderful. Very well written with consistent names and terminology throughout, and the writing is localized smoothly without losing any nuance. Note that they've re-translated the first few chapters that Estelion's Secret Imouto did, so if you're starting off, go to the second-to-last page of the chapter list. <<less
20 Likes · Like Permalink | Report
AndyDarren rated it
March 11, 2019
Status: c5

Even if you can get past the not so great translation quality, the story itself isn't all that great.

First of all, literally every "chant" he uses is "Hoi hoi hoi no hoi *spell name*". Wtf is that?! That s**t is so freaking annoying to read! It's like he has eighth grade syndrome and a mental illness at the same time!

Next is a point that was already brought up and it's that the litrpg elements are just a defect in the plot, not only does it annoyingly quantise everything but it... more>> also makes it so that all the power the MC could've had from all his years of research is severly limited because of the s*upid titles. Now he only amounts to a really good magician.

Lastly is what happened just before I stopped reading. So the MC want's to help the villagers whose well has dried up. You would think than someone who's been doing research for 5k years would come up with a clever idea like using earth and water magic to locate and create a new natural well right? Well you'd be wrong, because for some cocaphony reason, water magic can't be used without being near a water source?! Yet for some other even more cocaphony reason, ICE MAGIC CAN BE USED NO PROBLEM! The MC then proceeds to launch a giant ice chunk into the old well, chop it up using sword magic, and melt it using fire magic, lather rinse and repeat until the well is full and then problem solved UNTIL THE WELL GOES DRY AGAIN AND HE HAS TO REPEAT THE PROCESS! 'Clever Protagonist' my ass!

You know I wanted to give this novel a 3 star out of fairness since I've only read up to chapter 5 but the more I think on it the more I feel like it deserves a lower rating especially after the manga got my hopes up for nothing. <<less
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2Girls1Cupcake rated it
November 2, 2018
Status: c7
The premise of this novel is great, a young man with low potential in magic becomes an immortal by chance, spends 5000 years learning magic and researching, after which he comes back out into the world that hasn't advanced but rather the opposite.

It's an awesome premise for the template of an op sage-like MC without any common sense and who has trouble dealing with other people, but rather than this it's just turned into a giant joke, he's basically useless because of the litRPG elements where he has horrible titles... more>> that lower his abilities and his personality is 2D at best.

The litRPG elements are horrible in themselves, they are there just as filler without any real depth, the editing of the translation is bad and the manga images thrown in is annoying as hell.

I expected better. <<less
8 Likes · Like Permalink | Report
maisonaustyn rated it
October 22, 2019
Status: c16
The story so far is fine but not much has happened or seems to be happening. The focus seems to be more on character interactions and minor world building than anything so far. At least from what has been translated. The characters are actually well done imo but the goal and direction of the series seems to be all over the place. Nearly to the point of some chapters being only SoL content without any plot/story relevance.

The translation isn't as bad as the other reviews make it out to be... more>> but still not amazing. The translation seems to be moving quite fast which is most likely the cause of its flaws. Seems the translator is rushing to catch up to the managa. (The manga is a decently ahead of this translation atm) <<less
3 Likes · Like Permalink | Report
Japan112 rated it
April 16, 2020
Status: c66
Excellent Comedy, Good Strory Flow, More Dialogue than Monologue Of MC, Variety of Character & their Varied Personalities.

Overall MUST READ.
2 Likes · Like Permalink | Report
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