Interestingly, Plato himself was famously guarded about what he told people and he likely had esoteric teachings that he never wrote down or talked about in pub

Interestingly, Plato himself was famously guarded about what he told people and he likely had esoteric teachings that he never wrote down or talked about in public (although they can be sort of derived through what aristotle and other contemporaries said about them) https://en.wikipedia.org/wiki/Plato%27s_unwritten_doctrines https://en.wikipedia.org/wiki/Plato%27s_unwritten_doctrines