In plain words
The way of those who have renounced all attachment and are embodiments of pure sattva is yet another. Tamoguṇa was said to be foolishness, and one who had a dull mind was called a śūdra. One who took shape as a hero, steadfast and fierce, they went on calling a kṣatriya. Those who had devotion to God and love for the Divine, and broad qualities joined with sacred, pure sattva, they went on calling brāhmaṇas. It was through these guṇas and karmas that the order of varṇas came into being. But man, unable to recognise this sacred Satya and Dharma, has gone on living by a crooked path. Today, through differences of caste and creed, they are trying to tear humanity to pieces, like a leaf-plate torn apart by dogs. Within this, no one can make a distinction, saying one is great and one is small. It is not possible to decide that one is high and one is low. There is a fine comparison for this. The whole of Vedic knowledge, which until then had been one, the great sage Vyāsa divided into four Vedas. Of these four Vedas so divided, no one can criticise one Veda as great and another as small; it cannot be. The four Vedas are all equal! The four Vedas are all holy! The four Vedas all lead us to do actions free of self-interest! In the same way, because guṇa and karma were divided, no one has the authority to decide that one is small, one big and one middling. This has arisen only from narrow feelings! Lacking the strength and ability to uphold it, man follows the crooked path with such perverted minds.
Who always trust the śāstra as the truth, O vipras, in accord with the Veda!
Who are these brāhmaṇas? Those who believe the śāstras alone to be true, follow them, and end their lives in practising them were called brāhmaṇas. He may be anyone at all. Not brāhmaṇas by birth alone: we must take brāhmaṇas by action as the true ideal. That is why there is the division by guṇa and karma. They went on making this division on the basis of guṇa and karma.