Even a noble and large-hearted hero like Karna became an accomplice of the wicked Kauravas because of his association with them. Students should avoid bad company. To illustrate the spontaneous magnanimity of Karna, I would relate an episode where Krishna had contrived to bring home to Arjuna the extent to which Karna was prepared to sacrifice himself to satisfy any one who came to him for help. Krishna assumed the form of a Brahmin and came to Karna on the battlefield asking for some gold. As the only way he could satisfy the Brahmin was to pull out his two golden teeth to give them to him, Karna did not hesitate to do so. He got them washed in Ganga water aiming an arrow at the ground and making the river sprout forth.Arjuna, who had a high opinion of his own prowess and devotion to Krishna, felt humbled at the sight of Karna’s boundless generosity. (SSS Vol.29, p. 186)