He, who knows that there are sharp weapons capable of cutting the body though not made of iron and understands also the means of warding them off, can never be injured by the enemy.
अलोहं निशितं शस्त्रं शरीरपरिकर्तनम्। यो वेत्ति न तु तं नन्ति प्रतिघातविदं द्विषः॥