Comment by Cthulhu_

I don't know (not a philosopher or politician or whatnot), but I think great steps were taken when countries introduced a constitution; the US was one of the first modern countries 250 years ago. I think a constitution is that long-term vision, setting a country's morals and values in writing, spanning multiple generations and administrations.

Of course, it can never be set in stone because morals and values evolve; things like equal rights for PoC and women were only added later on, and they seem unsteady at best right now.

The other candidates for long-term vision (but not necessarily success) is organized religion (e.g. Holy Roman Empire) and generational authoritarianism (e.g. kingdoms/empires, North Korea). There's also an in-between with China's 5-year plans, where they make plans (or, feel like they do, I don't even know lol) instead of trying to make big changes one legislation or one budget term at a time.