Mbh 13.75.2b

O king, the great Rishis repair thither, aided only by their self-restraint, and as the end of their efforts to attain to a region of superior happiness. Hence, self-restraint is superior (in efficacy) to gift. The person, who becomes a preceptor (for teaching the Vedas), and who duly worships the fire, taking leave of all his afflictions in this world, enjoys inexhaustible felicity, O king, in the region of Brahma. That man, who, having himself studied the Vedas, imparts a knowledge thereof unto righteous disciples, and who praises the acts of his own preceptor, attains to great honours in heaven. That Kshatriya, who takes to the study of the Vedas, to the performance of sacrifices, to the making of gifts, and who rescues the lives of others in battle, similarly attains to great honours in heaven. The Vaisya, who, observant of the duties of his order, makes gifts, reaps as the fruit of those gifts, a crowning reward. The Sudra, who duly observes the duties of his order (which consist of services rendered to the three other orders) wins heaven as the reward of such services. Diverse kinds of heroes have been spoken of (in the scriptures). Listen to me as I expound to thee what the rewards are that they attain to. The rewards are fixed of a hero belonging to a heroic race. There are heroes of sacrifice, heroes of self-restraint, heroes of truth, and others equally entitled to the name of hero. There are heroes of battle, and heroes of gift of liberality among men. There are many persons, who may be called the heroes of the Sankhya faith as, indeed, there are many others that are called heroes of Yoga. There are others that are regarded as heroes in the matter of forest-life, of householding or domesticity, and of renunciation (or Sannyasa). Similarly, there are others that are called heroes of the intellect, and also heroes of forgiveness. There are other men, who live in tranquillity and who are regarded as heroes of righteousness.