Originally posted by: DharmaPriyaa
The answer is in the quest itself.
The Yaksha asked,--'By what, O king, birth, behaviour, study, or learning doth a person become a Brahmana? Tell us with certitude!'
Yudhishthira answered,-'Listen, O Yaksha! It is neither birth, nor study, nor learning, that is the cause of Brahmanahood, without doubt, it is behaviour that constitutes it.
Also, if you see his answer to Nahusha and Bhishma's explanation in Shanti Parva, you will find that Brahmins were not considered Brahmins by birth at that time. It was all about professions. Geeta also says the same thing. Brahmin means someone having seven virtues as per Nahusha Samvada. Brahmin means educators, scholars, doctors, sceintists and authors by profession. Don't you also put Doctors and Scientists, their knowledge and ability to save the world in today's scenario above anyone else? Won't you worship someone who eats only as much as offered and then remains content with that much simple life style? Brahmins of that time were like this only. Today doctors and all charge heavily but still we worship them. These people used to serve mankind for free and used to live on begging. That's the divinity of their character.
You have read Dr. Bhaduri's analysis. He too said about this. Brahmin does not mean an upper caste with special advantages. It is all about their selfless service for which even kings would have to protect them with care for the sake of nation.
Hope I could make it clear.