They brought out Dharma Sastras to guide man's conduct in society, Grihya Sutras to guide the conduct of house-holders, and a unique science, Meemamsa, prescribing sacrificial lore for the attainment of individual and national prosperity.
They codified the laws of sanitation, town-planning, architecture, sculpture and enunciated the principles of music, dancing, and the art of love.
The oldest and most important scriptures of Hinduism are the Vedas, which contain inspired utterances of seers and sages, who had achieved a direct perception of the divine being.The most important texts include the Vedas, Upanishads, the Puranas, the Epics - Ramayana, Mahabharata and the Bhagavad Gita. Hindus are the most thoughtful people, and their literature is characterized by constant concern with humanity's spiritual destiny.In response to this concern they have created elaborate philosophical concepts and wrote great epic poems, narrative literature and fiction.Smriti inlcude the Dharma Shastras, Nibhandas, Puranas, The Epics, Agamas or Tantras, Darshanas and Vedangas (Upa Vedas). When the Greeks towards the end of the fourth century B. came to the north-west, the Indians had already worked out a national culture of their own, unaffected by foreign influence.According to Alain Danielou distingused Orientalist, " The Puranas provide genealogies, which go back to the sixth millennium B. The Vedas and the Upanishads are to India what the Crown and Scepter are to an anointed king.
The Vedas are considered to be eternal, because they are not merely superb poetic composition but represent the divine truth itself as perceived through the elevated consciousness of great seers.