 यूयमेवाभिजानीत योऽयं यद्वा करिष्यति।अहिरेव ह्यहेः पादान्विजानाति न संशयः।। 
 "You alone can know about who he is and what he is about. A serpent alone knows the movement footprints of another serpent. There is no doubt about it. 