The king, conversant with the scriptures, who marches against an enemy should think of the three kinds of strength, and, indeed, reflect on his own strength and the strength of his enemy.
प्रयास्यमानो नृपतिस्त्रिविधां परिचिन्तयेत्। आत्मनश्चैव शत्रोश्च शक्तिं शास्त्रविशारदः॥