[829] "And he should fully understand conceit (māna)": Conceit — as onefold conceit: haughtiness of the mind (citta). As twofold conceit: conceit as exaltation of oneself and conceit as disparagement of others. As threefold conceit: the conceit "I am better," the conceit "I am equal," the conceit "I am inferior." As fourfold conceit: one generates conceit through gain, generates conceit through fame, generates conceit through praise, generates conceit through pleasure. As fivefold conceit: one generates conceit [thinking] "I am a gainer of agreeable forms"; one generates conceit [thinking] "[I am a gainer] of agreeable sounds, odors, tastes, and tangibles." As sixfold conceit: one generates conceit through the accomplishment of the eye; one generates conceit through the accomplishment of the ear, the accomplishment of the nose, the accomplishment of the tongue, the accomplishment of the body, the accomplishment of the mind. As sevenfold conceit: conceit (māna), excessive conceit (atimāna), conceit beyond conceit (mānātimāna), the conceit of inferiority (omāna), overestimating conceit (adhimāna), the conceit "I am" (asmimāna), wrong conceit (micchāmāna). As eightfold conceit: one generates conceit through gain, generates the conceit of inferiority through loss; generates conceit through fame, generates the conceit of inferiority through disrepute; generates conceit through praise, generates the conceit of inferiority through blame; generates conceit through pleasure, generates the conceit of inferiority through pain. As ninefold conceit: the conceit "I am better than one who is better"; the conceit "I am equal to one who is better"; the conceit "I am inferior to one who is better"; the conceit "I am better than one who is equal"; the conceit "I am equal to one who is equal"; the conceit "I am inferior to one who is equal"; the conceit "I am better than one who is inferior"; the conceit "I am equal to one who is inferior"; the conceit "I am inferior to one who is inferior." As tenfold conceit: here someone generates conceit through birth, or through clan, … or through some ground or other. Whatever conceit is of such a kind — conceiving, the state of being conceited, haughtiness, loftiness, [conceit like] a banner, self-assumption, the mind's desire for a banner — this is called conceit.
"And he should fully understand conceit": he should fully understand conceit with the three kinds of full understanding (pariññā): full understanding as the known (ñātapariññā), full understanding as scrutinization (tīraṇapariññā), full understanding as abandoning (pahānapariññā). What is full understanding as the known? One knows conceit: one knows and sees, "This is onefold conceit: haughtiness of the mind. This is twofold conceit: conceit as exaltation of oneself, conceit as disparagement of others. … This is tenfold conceit: here someone generates conceit through birth, or through clan, … or through some ground or other." This is full understanding as the known. What is full understanding as scrutinization? Having known thus, one scrutinizes conceit: one scrutinizes it as impermanent, as suffering (dukkha), … as no escape. This is full understanding as scrutinization. What is full understanding as abandoning? Having scrutinized thus, one abandons conceit, dispels it, makes an end of it, and brings it to non-existence. This is full understanding as abandoning. "And he should fully understand conceit": he should fully understand conceit with these three kinds of full understanding; hence, "and he should fully understand conceit."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.