Puggalavagga

Suttapiṭaka · Aṅguttaranikāya · Catukkanipāta · Vol. 21 · Section 133

[133] Bhikkhus, these four persons are found existing in the world. Which four? The one of quick understanding (ugghaṭitaññū), the one who understands through elaboration (vipacitaññū), the one who is guidable (neyya), and the one for whom the word is the utmost (padaparama). These, bhikkhus, are the four persons found existing in the world.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.