Hello FBM, Plato's republic is based on elitism and must be ruled by phlosophers which makes it undemocratic in the modern sense. Personally i disagree with the idea of "noble lie" as i find the deontological theories on ethics more superior than utilitrianism, especially the Kantanian theory (Categorial Imperative). One of my favourite quotes of the Buddha "its better to travel well than to arrive" so telling people the truth is the right action regardless if it leads to social harmony or not in my opinion. Regards, Bundokji