Yudhishthira said : By the Shruti (i.e. the study of the Vedas) one becomes learned. By asceticism one attains to what is very exalted. Intelligence makes one have a second. Ministration to the old makes one wise.
युधिष्ठिर उवाच श्रुतेन श्रोत्रियो भवति तपसा विन्दते महत्। धृत्या द्वितीयवान् भवति बुद्धिमान् वृद्धसेवया॥