A Brahmana should avoid service of the king, money obtained by agriculture, sustenance derived from the trade, all kinds of wily conduct, knowing any but his married wives and usury.
राजप्रेष्यं कृषिधनं जीवनं च वणिक्पथा। कौटिल्यं कौलटेयं च कुसीदं च विवर्जयेत्॥