Things immobile are devoured by those that are mobile; toothless creatures are devoured by those that have teeth, water is drunk by the thirsty; cowards are devoured by heroes.
चराणामचरा ह्यन्नमदंष्ट्रा दंष्ट्रिणामपि। आपः पिपासतामन्नमन्नं शूरस्य कातराः॥