He should never strike in ignorance. Having killed his enemy he should never be sorry. He should display anger, but should never do so when there is no occasion. He should be mild, but never to the offenders.
प्रहरेन्न त्वविज्ञाय हत्वा शत्रून् न शोचयेत्। क्रोधं कुर्यान्न चाकस्मान्मृदुः स्यान्नापकारिषु॥