說無垢稱經疏 3.45

3.45

贊曰：此有二句。西域好種總有四類：一婆羅門，此云淨行，少持戒行，以道自居。二剎帝利，此云官族，居位自怡，化洽人庶。三吠舍，此云坐收，居賤貨貴，以殉軀形。四戌達羅，此云耕田，墾農治生，以供職貢。初二高勝，所以偏彰。官族理務，人眾輕彼，多生瞋恚，故教忍辱。淨行持道，自尊卑人，故除其慢。

Commentary: Here there are two phrases. In the Western Regions, the noble castes are four in all: first, the brāhmaṇas, translated here as "pure conduct," who observe precepts and conduct from their youth, regarding themselves as abiding in the Way. Second, the kṣatriyas, translated here as "ruling class," who dwell happily in authority and govern the populace. Third, the vaiśyas, translated here as "sitting traders," who buy cheap and sell dear, striving for their physical livelihood. Fourth, the śūdras, translated here as "tillers of the soil," who cultivate farming and manage livelihoods to supply taxes and labor. The first two are high and eminent, hence they are specifically highlighted. When the ruling class manages affairs, the crowd of people often looks down upon them and generates much anger, so he taught them patience. Those of pure conduct uphold the Way, exalting themselves and looking down on others, so he eliminated their arrogance.