 अवश्यं विनशिष्यन्ति सर्वे रावण राक्षसाः।येषां त्वं कर्कशो राजा दुर्बुद्धिरजितेन्द्रियः।। 
 O Ravana ,you are cruel and evilminded. You have no control over your senses. And yet you are the ruler of your breed. Surely they are going to be destroyed. 