'Hedayat's study of Khayyam led him to examine the philosophies of two other Aryans, Zoroaster and the Buddha. In 1924, he published his first impressions in a brief study entitled "Ensan va Heyvan," ("Man and Animal"). Like Zoroaster's "Gatha of the Ox Soul," "Ensan va Heyvan" is primarily a defense of the animal kingdom against the ravages of man. And as do the dictates of the Buddha, it condemns the killing of animals for any purpose. Personally convinced, later on Hedayat became a vegetarian himself and remained a vegetarian to the end of his life.'
"These torture instruments that human beings use are unnatural. They themselves have made them. It is sometime since societies called "Humane Societies" have been established in Europe and the United States to defend the rights of animals. Specific laws have been enacted to defend the rights of animals and to stop human beings' cruelty and unjust dealings towards them. Are those who belong to these societies the same as these beasts? Impossible! If they were the same, their hearts could not be made of stone." From 'THE SILENT LANGUAGE OF A DONKEY AT THE TIME OF DEATH' by Sadeq Hedayat. Translated from the Persian by Farzin Yazdanfar