Ethics in religion concept, it demands careful and sustained reflection by every man and woman before it can become part of one's life. Ethics that constitute a dharmic life - that is a moral, ethical, virtuous life - evolve in vedas and upanishads. Ethical subjects and questions are debated by various schools of Hinduism, quite extensively, in numerous texts on what is right conduct, when, how and why. Over time, new virtues were conceptualized and added by ancient Hindu scholars, some replaced, others merged. For example, Manusamhita initially listed ten virtues necessary for a human being to live a "dharmic" life: "Dhriti" (courage),
Vedas preserved since ancient times. In the Hindu Epic the Mahabharata, the creation of Vedas is credited to Brahma. The Vedic hymns themselves assert that they were skillfully created by "Rishis" (sages), after inspired creativity, just as a carpenter builds a chariot. According to tradition, "Vyasa" is the compiler of the Vedas, who arranged the four kinds of "mantras" into four "Samhitas". There are four Vedas: the Rigveda, the Yajurveda, the Samaveda and the Atharvaveda. Each Veda has been subclassified into four major text types – the Samhitas (mantras and benedictions), the Aranyakas (text on rituals, ceremonies, sacrifices and symbolic-sacrifices), the