Mbh 5.33.5b

He that understandeth quickly, listeneth patiently, pursueth his objects with judgment and not from desire and spendeth not his breath on the affairs of others without being asked, is said to possess the foremost mark of wisdom. They that do not strive for objects that are unattainable, that do not grieve for what is lost and gone, that do not suffer their minds to be clouded amid calamities, are regarded to possess intellects endued with wisdom. He who striveth, having commenced anything, till it is completed, who never wasteth his time, and who hath his soul under control, is regarded wise. They that are wise, O bull of the Bharata race, always delight in honest deeds, do what tendeth to their happiness and prosperity, and never sneer at what is good. 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.