. . . the earth, as being their mother, delivered them, and now, as if their land were their mother and their nurse, they ought to take thought for her and defend her against any attack, and regard the other citizens as their brothers and children of the self-same earth. . . While all of you, in the city, are brothers, we will say in our tale, yet god, in fashioning those of you who are fitted to hold rule, mingled gold in their generation, for which reason they are the most precious — but in the helpers, silver, and iron and brass in the farmers and other craftsmen. And, as you are all akin, though for the most part you will breed after your kinds, it may sometimes happen that a golden father would beget a silver son, and that a golden offspring would come from a silver sire, and that the rest would, in like manner, be born of one another. So that the first and chief injunction that the god lays upon the rulers is that of nothing else are they to be such careful guardians, and so intently observant as of the intermixture of these metals in the souls of their offspring, and if sons are born to them with an infusion of brass or iron they shall by no means give way to pity in their treatment of them, but shall assign to each the status due to his nature and thrust them out among the artisans or the farmers. And again, if from these there is born a son with unexpected gold or silver in his composition they shall honor such and bid them go up higher, some to the office of guardian, some to the assistanceship, alleging that there is an oracle that the city shall then be overthrown when the man of iron or brass is its guardian.
Plato's Republic
Wikipedia wrote:[Leo] Strauss noted that thinkers of the first rank, going back to Plato, had raised the problem of whether good and effective politicians could be completely truthful and still achieve the necessary ends of their society. By implication, Strauss asks his readers to consider whether it is true that noble lies have no role at all to play in uniting and guiding the polis. Are myths needed to give people meaning and purpose and to ensure a stable society? Or can men dedicated to relentlessly examining, in Nietzsche's language, those "deadly truths," flourish freely? Thus, is there a limit to the political, and what can be known absolutely? In The City and Man, Strauss discusses the myths outlined in Plato's Republic that are required for all governments. These include a belief that the state's land belongs to it even though it was likely acquired illegitimately and that citizenship is rooted in something more than the accidents of birth. Seymour Hersh also claims that Strauss endorsed noble lies: myths used by political leaders seeking to maintain a cohesive society.[5][6] In The Power of Nightmares, documentary filmmaker Adam Curtis opines that "Strauss believed it was for politicians to assert powerful and inspiring myths that everyone could believe in. They might not be true, but they were necessary illusions. One of these was religion; the other was the myth of the nation."
Are Noble Lies such as Plato, Strauss and Goebbels suggest, an essential commodity for the effective functioning of state and society?