Episodes 516-517 (Fuurinkazan) of the 17th season of Detective Conan are probably the clips which best depict the evil but artistic use of traditional Asian literature in committing a very inhuman serial murder.
The said case (or the culprit from it, that is) is inspired by the Fuurinkazan (風林火山). Literally translated as Wind, Forest, Fire, and Mountain, it was a battle standard used by the Sengoku period daimyo Takeda Shingen, quoting chapter 7, passages 13-14 of Sun Tzu’s The Art of War. (Source: Wikipedia)
Let your rapidity be that of the wind, your compactness that of the forest.
In raiding and plundering be like fire, be immovable like a mountain.
(original Chinese text: 故其疾如風，其徐如林. 侵掠如火，不動如山.).
Other quotes from Fuurinkazan appear in succeeding episodes in which Inspector Kansuke Yamato is included.
It is notable in this Fuurinkazan debut episode however, that at one point, police detective Yui Uehara advises Ran and Kazuha to view the Fuurinkazan as rules of love. An extension of the quoted lines from The Art of War is actually added here — about lightning and shadow. The complete six “elements” thus mentioned are as follows, stated in “plainer” words:
Be as swift as the wind.
Be as quiet as the forest.
Attack as fiercely as fire.
Be immovable like the mountain.
Be as impenetrable as a shadow.
Move like the lightning.
It was in other words a reminder to be constantly vigilant with love, because as explained once again by another Fuurinkazan quote in another episode (S18E559, The Mansion of Death and the Red Wall: Item in Hand):
The item in hand might not be within one’s grasp.
Well, love is war, that’s what Detective Conan wants to tell its viewers. I actually believe in this. It is a dangerous battle in which your life is at a total gamble.
Love is like grasping blindly, it dances in the darkness. Oh well, that line’s not from the Fuurinkazan. English-translated lyrics from an opening song in season 17, Ai wa Kurayami no Naka de by ZARD. May or may not be related.
PS: Those quotes from the Fuurinkazan extend to other aspects of life as well. Go figure what they are.