Mandalorian tenets or the six actions.
Early Mandalorian culture, originating with the ancient Taung species, was believed to have begun as a religious warrior society, War was practiced as a form of ritual worship to their multiple gods and because of this, many of the Mandalorians' earliest conflicts were seen as holy wars and their warriors known as the Mandalorian Crusaders.
After the Great Sith war where most of the Taung had perished , the Mandalorians began accepting beings of other races and species into their culture and transforming what it meant to be a Mandalorian. Those who considered themselves Mandalorian were bound by a single, unifying culture rather than any one race, and they believed that an individual was defined by their actions rather than the circumstances of birth.
Resol'nare
Young Mandalorian children were taught a rhyme to help them learn the tenets of the Resol'nare (basic: six actions) These six tenets defined what it meant to be a Mandalorian, and any who wished to be considered as such was expected to follow them.
Ba'jur, beskar'gam, (Education and armor)
Ara'nov, aliit, (Self-defense, our tribe)
Mando'a bal Mand'alor — (Our language, our leader)
An vencuyan mhi. (All help us survive.)
This code is self-perpetuating and was directly responsible for ensuring the survival of the Mandalorian culture and society.
Wearing the armor (beskar'gam or ''iron skin'')
Once Mandalorians reach adulthood, they assemble a suit of armor that suits their needs and skills. It is both a tool and a symbol of their cultural identity. Aside from its defensive capabilities, armor served another function: in a group formed from so many different species, often times it was only the armor that displayed an outward sign of the culture that bound these individuals together. The paint scheme of a Mandalorian's armor occasionally represented a soldier's state of mind, or their personal mission.
As many soldiers preferred the inconspicuousness afforded by camouflage, Mandalorians believed in the saying:
"It's one thing to see us coming, it's another to do something about it."
Speaking the language (Mando'a)
While most Mandalorians know and speak Basic and other languages, all are raised speaking Mando'a, the language of the Taungs. When among themselves, they speak Mando'a almost exclusively. The language itself is very fluid and simple, reflecting the culture of which it is a part, and like the culture, it has changed very little over the centuries.
Mando'a was often thought of as easy to learn, a trait highly desirable in a culture that regularly adopted adults from numerous races and species. But there were difference speaker of Basic had to adjust, including Mando'a's expression of tense, and its gender-neutrality.
It was not unheard for Mandalorians to speak other languages such as Huttese and Basic alongside Mandalorian as it was necessary to communicate with others when working as a mercenary or bounty hunter.
Defending oneself and the family
While the Mandalorians are best known as a warrior culture, they are also strongly family oriented. Each member of a family is expected to protect the others, garaunteeing their survival and through this, ensuring the survival of the clan and culture.
Adoption was extremely common in Mandalorian culture, to the point where even adults could be adopted. Because of the Mandalorians' constant connection to war, widows and orphans became an inescapable fact of life.
Contribute to clans welfare
Each individual and family is expected to contribute to the welfare and prosperity of their clan, which in turn helps provide for the family and individual as needed. This act is far from the socialist prop it first seems, as it is a neccessity for a society that spends a great deal of its time at war to provide for such neccessities as food, shelter and manufactured goods when a large number of a clan's adults are on other worlds fighting.
Raise children as Mandalorians
It is a Mandalorian's responsibility to raise children in the traditions of their culture. However this is not simply an imperative to breed, as it might seem on the surface. Mandalorians often adopt their children, caring very little for blood lineage and bowing to the neccessities created by their lifestyles as nomadic warriors. This act is a mandate to perpetuate the culture, as are the majority of the Six Acts, by passing it down to both offspring and adopted war orphans.
Rally to the cause of the Mand’alor
While the social structure of the Mandalorians is very simple, revolving around family and clan, each clan and family answering to itself, in times of war all families and clans are expected to answer a call to war by the Mand'alor, the leader of the Mandalorian people.
The old and the new way.
In order to retain their heritage in the face of outside influence, Mandalorians placed a high value on rigorously carrying out the Resol'nare's tenets in a daily manner. However, interpretation of the Resol'nare differed, and at least one group of Mandalorians, the New Mandalorians, potentially followed an alternate interpretation of the Resol'nare by doing away with personally-owned sets of armor and refusing to aid the Mand'alor.
The New Mandalorians was the pacifist movement who placed great importance on the virtues of pacifism, neutrality, and nonviolence rather than martial prowess and military strength as the Old Mandalorians did. They were led by a Duchess of Mandalore up until its dissolution following the coup in 19 BBY.
Similar to Death Watch, the Old Mandalorians were exiled from Mandalore, but unlike their Death Watch counterparts, did not seek vengeance on the New Mandalorians. Instead, the Old Mandalorians resettled in other parts of the galaxy and worked for the highest bidder, maintaining their Mandalorian warrior heritage as bounty hunters, mercenaries and other professions.
"Here's why you can't exterminate us, aruetii. We're not huddled in one place—we span the galaxy. We need no lords or leaders—so you can't destroy our command. We can live without technology—so we can fight with our bare hands. We have no species or bloodline—so we can rebuild our ranks with others who want to join us. We're more than just a people or an army, aruetii. We're a culture. We're an idea. And you can't kill ideas—but we can certainly kill you."
― Mandalore the Destroyer