Bharadwaja said If the distinction between the four castes be made by means only of colour, then it seems that all the four orders have been intermixed.
भरद्वाज उवाच चातुर्वर्ण्यस्य वर्णेन यदि वर्णो विभिद्यते। सर्वेषां खलु वर्णानां दृश्यते वर्णसंकरः॥