Bhishma said A confusion of the duties of the four castes is never highly spoken of. What is called Truth always exists in a pure and unmixed state in every one of those four castes.
भीष्म उवाच चातुर्वर्ण्यस्य धर्माणां संकरो न प्रशस्यते। अविकारितमं सत्यं सर्ववर्णेषु भारत॥