Modify cultural ideas

People modify cultural ideas in their minds, and sometimes they pass on the modified versions. Inevitably, there are unintentional modifications as well, partly because of straightforward error, and partly because inexplicit ideas are hard to 1 accurately: there is no way to download them directly from one brain to another like computer programs. 2 native speakers of a language will not give 3 definitions of every word. So it can be only rarely, if 4, that two people hold precisely the same cultural idea in their minds. That is why, when the founder of a polithilosophical movement or a religion dies, or 5, schisms typically happen. The movements most devoted followers are often shocked to 6 that they disagree about what its doctrines—really are.