Shloka 27
मृत्यु-काल-प्रबोधनम् (Instruction on Mortality, Time, and Truth) — Mahābhārata, Śānti-parva 169
तेषामप्यधमा राजन् कृतघ्ना मित्रघातका: । त्यक्तव्यास्तु दुराचारा: सर्वेषामिति निश्चय:
teṣām apy adhamā rājan kṛtaghnā mitraghātakāḥ | tyaktavyās tu durācārāḥ sarveṣām iti niścayaḥ ||
毗湿摩说道：“大王啊，即便在那些可责之人中，最卑下的也是忘恩负义者——那种甚至能杀害自己朋友的人。如此邪恶、行止不端之徒，当从远处便加以弃绝；此乃众人一致而确定的见解。”
भीष्म उवाच
Educational Q&A
Ingratitude is portrayed as the basest vice because it destroys trust and can lead even to betrayal and violence against friends; therefore, such incorrigibly immoral people should be avoided and renounced.
In the Śānti Parva’s instruction on dharma, Bhīṣma advises the king on recognizing harmful character types, declaring the ungrateful—capable of harming friends—as the worst and recommending that they be kept at a distance and abandoned.