- Swami Dayanand Saraswati (1824-1883) was a prominent Hindu religious and social reformer and the founder of the Arya Samaj. - He famously gave the slogan "Go back to the Vedas" (Vedo ki or Laut Chalo). - He considered the Vedas to be the infallible source of all true knowledge and rejected the authority of later scriptures, including the Puranas, which he believed had corrupted the original teachings.