A good liar can win a good argument according to a good liar?
"Yes, all you need is a good argument."
In context to law (expressed so well in Matthew 7:12): those who lie while those same liars work diligently to avoid being lied to, are those who prove their guilty minds.
That is also confirmed in other Christian writings, such as the concept of knowing the truth so as to be set free, and therefore if someone endeavors to deceive - with malice aforethought - someone confesses, once again, their guilty mind, since Matthew 7:12 has already been offered as the lie detector test. If someone were actually to be seeking the truth, seeking an accurate accounting of the facts, then someone would speak the truth, so as to do onto others as they would have others do onto them. They, by their unlawful actions, wish to be bonded, not free, they wish to be bonded to their malignancy of their own construction, through their willful choice to deceive other people.
That works also in practice as those well practiced at deception succumb to their own lies as they begin to have trouble keeping track of their lies, leaving them less able to discern the truth, as the tendency grows into a fog of lies, and a need to believe their own lies, turning into a fellow believer in lies, a victim of deception themselves.
Therefore, once again, "all you need" if you, or you, or you, or me, or anyone, needs to understand what "all you need" in matters of law is to understand the application of law offered well enough, simple enough, in Matthew 7:12, and simply do unto others as you would have them do unto you. If you reach for deception, which appears to be the case with the one offering the red text above, your words confess your guilt, if at the same time said author of words proves, beyond a reasonable doubt, that they self contradict.
If you know the law then you are inspired to tell the truth, which is proven to be your state of mind, as your actions are such that you insist upon the truth being told to you; not content with being lied to, as a form of communication offered by other people.
If you falsely claim to know the law, and you claim that deception (fraud) is lawful, while you also claim that you - a deceiver - are an authority of the law, where deception is the rule, while you claim to be challenging those who make false claims, according to you, there is in that web of duplicity an obvious, measurable, self contained lie: one side of you claims that deception is the law, and the other side of you, all self contained, works to expose the deceptions, yet your words confess that you, yourself, seeks to deceive, while your counterfeit authority is maintained according to my understanding of what your claims mean.
But how can I ever know what your claims actually mean, if all that you do is lie?
I can ask, for example, can a good liar win a good argument according to a good liar?
And you might answer:
"Yes, all you need is a good argument."
In the context of the willful disarmament of innocent people whose arms they bear so as to afford them an effective defense against harm done by criminals with badges (so called government) the red words above amount to a confession made by a liar who is blowing the whistle on the counterfeiters who counterfeit rule of law when said counterfeiters set out to disarm the people through deception.
The classic example is the extortionist claiming to be collecting insurance premiums. The counterfeit buyer of the insurance asks: "Insurance against what?" The goon collecting the extortion payment responds with: "Insurance against broken knee caps."
The proof of America is otherwise. Those liars counterfeiting government have been working to deceive Americans for over 200 years now, those enemies domestic and foreign, and yet I am still armed, not only armed in my own mind, armed with a true understanding of what the law means, but I am also well armed with guns, as was may father, and perhaps here is where persistence may be working in favor of the deceivers. My children are less armed, less diligent, as my efforts to instill in them the need to be armed has been slightly less effective as my parents efforts on me; and possibly their parents on them, on and on back in time. On the other hand my children have taught me lessons about the relative power of knowledge, knowing the true law, compared to the power of physical armaments, which is cause for hope for posterity for people federated into many states united rightfully, and truthfully.
So "all you need is a good argument" in this context is such that all you (deceivers) need is a good argument in order to counterfeit government and tear down every good thing in life, so long as enough people, over enough persistent exposure to lies, end up disarmed to a point at which the worst evil people are then able to set in motion a world wide pogrom.
If on the other hand "all you need" in order to set everyone free from such Empires of deception is to tell the truth instead, since the law is simple enough to understand, you tell the truth and others are then inspired to tell the truth, rather than you telling a lie, inspiring others to get as caught up in your chosen world of deception: if not more caught up as the tendency in self made hell on earth is to be the best liar.