[766] **"And a bhikkhu should not be a boaster"** (na ca katthitā siyā bhikkhu): Here someone is a boaster, a braggart. He boasts: "I am accomplished in virtue," or "accomplished in observances," or "accomplished in virtue and observances"; or [he boasts] on account of birth, or clan, or status as a son of a good family, or beauty of complexion, or wealth, or study, or a field of work, or a field of craft, or a branch of knowledge, or learning, or ready wit, or on account of one or another ground; or [he boasts]: "I have gone forth from a high family," or "I have gone forth from a family of great wealth," or "I have gone forth from a family of lofty wealth"; or "I am an expert in the discourses," or "a bearer of the Discipline," or "a speaker on the Dhamma," or "a forest dweller," … or "I am a gainer of the attainment of the Sphere of Neither Perception Nor Non-Perception" — thus he boasts and brags. Thus one should not brag; one should abandon bragging, dispel it, make an end of it, bring it to non-existence; one should be one who has desisted from boasting, abstained, refrained, gone out from it, released, fully freed, detached from it, and should dwell with a mind (citta) made free of boundaries. Hence, "a bhikkhu should not be a boaster."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.