अर्थिनामुपपन्नानां पूर्वं चाप्युपकारिणाम् | आशां संश्रुत्य यो हन्ति स लोके पुरुषाधमः || ४-३०-७१
'He who, having promised to his friend to grant his desire and who, having been obliged, fails to implement the promise, is the lowest on earth. [4-30-71]
कृतार्था ह्यकृतार्थानां मित्राणां न भवन्ति ये | तान्मृतानपि क्रव्यादाः कृतघ्नान्नोपभुञ्जते || ४-३०-७३
'Even the carnivorous animals dislike to eat the body of such ungrateful men who do not help their friends even though they have received help and have achieved their objective.' [4-30-73]