Prowess is the root of wealth; whatever else is called its root is not so. As the shade of the tree in winter is useless, so is everything fruitless without prowess.
ते सत्त्वं हि मूलमर्थस्य वितथं यदतोऽन्यथा। न तु प्रसक्तं भवति वृक्षच्छायेव हैमनी॥