The Great Epic of the Bhārata dynasty 5.33.27

5.33.27

tattvajñaḥ sarvabhūtānāṃ yogajñaḥ sarvakarmaṇām |
upāyajño manuṣyāṇāṃ naraḥ paṇḍita ucyate || 27 ||

He who exulteth not at honours, and grieveth not at slights, and remaineth cool and unagitated like a lake in the course of Ganga, is reckoned as wise. That man who knoweth the nature of all creatures (viz., that everything is subject to destruction), who is cognisant also of the connections of all acts, and who is proficient in the knowledge of the means that men may resort to (for attaining their objects), is reckoned as wise. He who speaketh boldly, can converse on various subjects, knoweth the science of argumentation, possesseth genius, and can interpret the meaning of what is writ in books, is reckoned as wise. He whose studies are regulated by reason, and whose reason followeth the scriptures, and who never abstaineth from paying respect to those that are good, is called a wise man. He, on the other hand, who is ignorant of scripture yet vain, poor yet proud, and who resorteth to unfair means for the acquisition of his objects, is a fool. He who, forsaking his own, concerneth himself with the objects of others, and who practiseth deceitful means for serving his friends, is called a fool. He who wisheth for those things that should not be desired, and forsaketh those that may legitimately be desired, and who beareth malice to those that are powerful, is regarded to be a foolish soul. He who regardeth his foe as his friend, who hateth and beareth malice to his friend, and who committeth wicked deeds, is said to be a person of foolish soul.