The earliest recorded criticism of the ritual comes from the Cārvāka, an atheistic school of Indian philosophy that assumed various forms of philosophical skepticism and religious indifference. A quotation of the Cārvāka from Madhavacharya's Sarva-Darsana-Sangraha states: "The three authors of the Vedas were buffoons, knaves, and demons. All the well-known formulae of the pandits, jarphari, turphari, etc. and all the obscene rites for the queen commanded in Aswamedha, these were invented by buffoons, and so all the various kinds of presents to the priests, while the eating of flesh was similarly commanded by night-prowling demons."