These precepts are the "Three sieves", often wrongly attributed to Socrates. Here [0] is an interesting discussion on their origin. For instance, these three si

These precepts are the "Three sieves", often wrongly attributed to Socrates. Here [0] is an interesting discussion on their origin. For instance, these three sieves are regularly referenced in Europe since the XIXth century, but can already be found much earlier in the Indian Manusmriti. [0]: https://skeptics.stackexchange.com/questions/39843/are-socrates-3-tests-from-a-historical-source https://skeptics.stackexchange.com/questions/39843/are-socra...