But here it is not 100% clear whether it's just talking about the various classes of society. They're bound to have some priests and teachers, some warriors and rulers, some farmers, merchants, some laborers, or are they saying something more fundamental? Now we can go to the time of the Mahabharata, when the Mahabharata was written, and the subset of the Mahabharata, which is the Bhagavad Gita, and they also make reference to this varna system. So the Bhagavad Gita is the part of the Mahabharata where you have Krishna talking to Arjuna and reassuring him about his role in life. And this is what Krishna tells Arjuna. A Brahmin's virtues, born of his nature, are serenity, self-control, austerity, purity, tolerance, honesty, learning, and to know the truth of things which be. A Kshatriya's pride, born of his nature, lives in valor, exuberance, determination, resourcefulness, bravery in battle, and generosity and noble demeanor as a lord of men.