[166] "Furthermore, Ambaṭṭha, here some ascetic or brahmin, not managing to attain this unsurpassed accomplishment in true knowledge (vijjā) and conduct (caraṇa), and not managing to attain subsistence on fallen fruit, and not managing to attain subsistence on tubers, roots, and fruits, and not managing to attain the service of the sacred fire, builds a house with four doors at the crossing of four great highways and dwells there, thinking: 'Whatever ascetic or brahmin comes from these four quarters, I shall honor him according to my ability and strength.' He succeeds only in becoming an attendant of one accomplished in true knowledge and conduct. This, Ambaṭṭha, is the fourth opening to loss (apāyamukha) for this unsurpassed accomplishment in true knowledge and conduct.
These, Ambaṭṭha, are the four openings to loss for this unsurpassed accomplishment in true knowledge and conduct."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.