Sri Bhishma mentions how a Brahmin becomes worthy. He mentions various qualifications for such a Brahmana.

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1. A Brahmin who does Sandhyavandanam thrice a day.

2. A Brahmin who knows the importance and meaning of Gayathri (grasping the meaning of the whole
Sandhyavandanam & all it’s Angas)

3. A Brahmin who observes vows sincerely. (fasting like Ekadasi)
Bhishma mentions many other qualifications but we shall stick to this for the time being.

 

When Yuddhisthra asks Bhishma, what are the two things essential for the world ? Bhishma replies that Brahmanas learning Vedas and worshipping of cows are the essential things. If Brahmanas do Samskaras properly, then all the people will follow their Dharmam. If a cow is happy, then the whole locality is happy.