Socrates and the Athenian Philosophers
Socrates wrote nothing. He walked around Athens asking people to define courage or justice, then demonstrated that they could not, which made him beloved by the young and infuriating to everyone else. Athens tried him for corrupting the youth and disrespecting the gods, and executed him. His student Plato wrote it all down and founded a school; Plato's student Aristotle catalogued everything from logic to octopuses and tutored Alexander. The method — assume nothing, define your terms, follow the argument even where you dislike where it goes — outlived the city that killed the man who taught it.
A belief system rises, spreads, institutionalizes, and then schisms — changing the rules people accept as legitimate.