चातुर्वर्ण्यं मया सृष्टं गुणकर्मविभागशः । तस्य कर्तारमपि मां विद्ध्यकर्तारमव्ययम् ॥ ४-१३॥

cāturvarṇyaṃ mayā sṛṣṭaṃ guṇakarmavibhāgaśaḥ । tasya kartāramapi māṃ viddhyakartāramavyayam ॥ 4-13॥

चातुर्वर्ण्यं = caturvanJyam (n. nom. sg.), four-caste sys-tem, system of four castes.; 

मया = maya (inst. sg.), by me.; 

सृष्टं = srstam (n. nom. sg. p. pass. participle ,*srj), created, brought forth, let go.; 

गुण = guna (m.), guna.; 

कर्म karma (n.), action.; 

विभाग = vibhaga (m. from vi *bhaj), distribution, sharing.; 

शः = -sas (adverbial suffix), according to. (guṇakarmavibhāgaśaḥ, adverbial TP cpd., according to the distribution of the guna and their acts.); 

तस्य = tasya (m. gen. sg.), of it, of this.; 

कर्ता = kartaram (m. acc. sg.), creator, maker.; 

अपि api, even, also, although.; 

मां = mam (acc. sg.), me.; 

विधि = viddhi (2nd sg. imperative act. *vid), know! learn!; 

अकर्ता = akartaram (m. acc. sg.), non-doer, one who does not act.; 

अव्ययम्  = avyayam (m. acc. sg.), eternal, imperishable.