They amongst them are not Brahmanas who cannot understand that every created thing is Supreme Brahma. These, falling away, became members of various (inferior) castes.
ब्रह्म चैव परं सृष्टं ये न जानन्ति तेऽद्विजाः। तेषां बहुविधास्त्वन्यास्तत्र तत्र हि जातयः॥