Neither Serse, nor the others who came later, had the mind, the wisdom, the fortune of Darius.* They would like the Sassanids, with noble boldness, t… - Italo Pizzi

The '[Avestā|Avesta]]' is not an organic book, it is not the work of a single creative and thinking mind, yes well the collection of several works, indeed of fragments of several works that have been lost. It therefore, due to the varied nature of the parts that compose it, can interest the public and scholars in two distinct and different ways. It may interest the philosopher and the theologian as the sacred code of a religion already famous in antiquity; it may interest the historian, the literate, the poet, in that part of it that touches life and customs, the ideas of people lived in remote ages, and expresses, maxims in the poetic part, thoughts, affections, vows, aspirations.

Although he was a Muslim of religion and although he had to live in times, in which of the ancient and glorious Persia only the name remained, he could, however, he alone, understand all the glory and the inherient and warlike nature of his homeland. (p. 123)

Whatever it may, it is a well-ordered and engineered system of religion that, like Mosaism, Christianity and Islamism, proceeds from the preaching and fruitful work of one person.