The Vaishya likewise used in those days to adore the Kshatriya, and the Shudra to adore the Vaishya. This is what is heard. The Brahmana was like a burning fire. Without being able to touch him or approach his presence, the Shudra used to serve the Brahmana from a distance.
वैश्यो राजन्यमित्येव शूद्रो वैशमति श्रुतिः। दूराच्छूद्रेणोपचर्यो ब्राह्मणोऽग्निरिव ज्वलन्॥