瑜伽師地論略纂 3.97

3.97

In falsely reckoning superiority, the text also has four parts. Regarding “Brahmins are the white and pure caste”: this does not mean the white colour. “Purity can be attained” means: because practicing clean precepts allows purity to be attained. “Born from mouth and belly”: born receiving teachings, because of being born directly. Kṣatriyas are born from Brahmā’s knees; Vaiśyas and others are born from the feet. Regarding “Because they see in the world true Brahmins possessing precepts naturally”: seeing those who have renounced household life within [the Dharma], practice truly and purely, uphold the vinaya and maintain the precepts, purely cultivate the brahmacaryā—the vinaya masters and other true Brahmins—and coveting fame, gain, and respect as an expedient to display themselves, they fabricate this reckoning.