Satyvat said The three other castes should be placed under the control of the Brahmanas. If those three castes be kept within the limits of virtue, then the subsidiary caste (that have sprung from intermixture) will imitate their practises.
सत्यवानुवाच सर्व एते त्रयो वर्णाः कार्या ब्राह्मणबन्धनाः। धर्मपाशनिबद्धानामन्योऽप्येवं चरिष्यति॥