Question: Why is it a central dogma to Karate that it only be used in real confrontations?
About the article "Karate", section "Philosophy".

Candidate passages:
As a possible reaction to skepticism, dogmatism is a set of beliefs or doctrines that are established as undoubtedly in truth.
They are regarded as (religious) truths relating closely to the nature of faith.
The term "dogmatic" can be used disparagingly to refer to any belief that is held stubbornly, including political and scientific beliefs.
A notable use of the term can be found in the Central Dogma of Molecular Biology.
In his autobiography, "", Francis Crick wrote about his choice of the word "dogma" and some of the problems it caused him:I called this idea the central dogma, for two reasons, I suspect.
I had already used the obvious word hypothesis in the sequence hypothesis, and in addition I wanted to suggest that this new assumption was more central and more powerful.
... As it turned out, the use of the word dogma caused almost more trouble than it was worth...
Many years later Jacques Monod pointed out to me that I did not appear to understand the correct use of the word dogma, which is a belief that cannot be doubted...
I used the word the way I myself thought about it, not as most of the world does, and simply applied it to a grand hypothesis that, however plausible, had little direct experimental support. 
In his autobiography, "", Crick wrote about his choice of the word "dogma" and some of the problems it caused him:"I called this idea the central dogma, for two reasons, I suspect.
I had already used the obvious word hypothesis in the sequence hypothesis, and in addition I wanted to suggest that this new assumption was more central and more powerful.
... As it turned out, the use of the word dogma caused almost more trouble than it was worth.
Many years later Jacques Monod pointed out to me that I did not appear to understand the correct use of the word dogma, which is a belief "that cannot be doubted".
I did apprehend this in a vague sort of way but since I thought that "all" religious beliefs were without foundation, I used the word the way I myself thought about it, not as most of the world does, and simply applied it to a grand hypothesis that, however plausible, had little direct experimental support.
"Similarly, Horace Freeland Judson records in "The Eighth Day of Creation":"My mind was, that a dogma was an idea for which there was "no reasonable evidence".
You see?!"
And Crick gave a roar of delight.
"I just didn't "know" what dogma "meant".
And I could just as well have called it the 'Central Hypothesis,' or — you know.
Which is what I meant to say.
Dogma was just a catch phrase."
The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system.
It was first stated by Francis Crick in 1958 and re-stated in a "Nature" paper published in 1970: "The central dogma of molecular biology deals with the detailed residue-by-residue transfer of sequential information.
It states that such information cannot be transferred back from protein to either protein or nucleic acid."
This has also been described as "DNA makes RNA makes protein.
"However, this simplification does not make it clear that the central dogma as stated by Crick does not preclude the reverse flow of information from RNA to DNA, but only the reverse flow from protein to RNA or DNA.
Crick had misapplied the term "dogma" and Crick's proposal had nothing to do with the linguist meaning of "dogma".
He subsequently documented this error in his autobiography.
The dogma is a framework for understanding the transfer of sequence information between sequential information-carrying biopolymers, in the most common or general case, in living organisms.
There are 3 major classes of such biopolymers: DNA and RNA (both nucleic acids), and protein.
There are 3×3 = 9 conceivable direct transfers of information that can occur between these.
The dogma classes these into 3 groups of 3: 3 general transfers (believed to occur normally in most cells), 3 special transfers (known to occur, but only under specific conditions in case of some viruses or in a laboratory), and 3 unknown transfers (believed never to occur).
The general transfers describe the normal flow of biological information: DNA can be copied to DNA (DNA replication), DNA information can be copied into mRNA (transcription), and proteins can be synthesized using the information in mRNA as a template (translation). 
Karate developed in the Ryukyu Kingdom.
It was brought to the Japanese mainland in the early 20th century during a time of cultural exchanges between the Japanese and the Ryukyuans.
It was systematically taught in Japan after the Taisho era.
In 1922 the Japanese Ministry of Education invited Gichin Funakoshi to Tokyo to give a karate demonstration.
In 1924 Keio University established the first university karate club in Japan and by 1932, major Japanese universities had karate clubs.
In this era of escalating Japanese militarism, the name was changed from ("Chinese hand" or "Tang hand") to ("empty hand") – both of which are pronounced "karate" – to indicate that the Japanese wished to develop the combat form in Japanese style.
After World War II, Okinawa became an important United States military site and karate became popular among servicemen stationed there.
The martial arts movies of the 1960s and 1970s served to greatly increase the popularity of martial arts around the world, and in English the word "karate" began to be used in a generic way to refer to all striking-based Oriental martial arts.
Karate schools began appearing across the world, catering to those with casual interest as well as those seeking a deeper study of the art.
Shigeru Egami, Chief Instructor of Shotokan Dojo, opined "that the majority of followers of karate in overseas countries pursue karate only for its fighting techniques ... Movies and television ... depict karate as a mysterious way of fighting capable of causing death or injury with a single blow ... the mass media present a pseudo art far from the real thing."
Shoshin Nagamine said "Karate may be considered as the conflict within oneself or as a life-long marathon which can be won only through self-discipline, hard training and one's own creative efforts.
"In 2009, in the 121st International Olympic Committee voting, karate did not receive the necessary two-thirds majority vote to become an Olympic sport.
Karate was being considered for the 2020 Olympics,—however at a meeting of the IOC's executive board, held in Russia on May 29, 2013, it was decided that karate (along with wushu and several other non-martial arts) would not be considered for inclusion in 2020 at the IOC's 125th session in Buenos Aires, Argentina, in September 2013.
Web Japan (sponsored by the Japanese Ministry of Foreign Affairs) claims there are 50 million karate practitioners worldwide, while the World Karate Federation claims there are 100 million practitioners around the world. 
One format of full contact karate competition is full contact point karate.
It is similar to non full contact competition karate; the only difference from light contact and semi contact karate bouts is that if you knock your opponent out, you win instead of being disqualified for excessive contact.
Points are scored for clean hits to the specified target zones, and unless there is an evident knockout or knockdown, the referee breaks the bout after each exchange to score the hits.
The blows are delivered with full contact, although gloves, foot-pads, and in some cases body padding, are worn.
This form of full contact karate competition is mainly found in North America where it originated, although it has a minor following in Europe.
It is also similar to the competition format used in Taekwondo, and the sport karate competitions using this format often blur the line between these two related arts.