James George Frazer,
The Golden Bough: A Study in Magic and Religion…
“ To avoid misapprehension, I desire to point out that I am not here concerned with the evolution of Aryan religion in general, but only with that of a small, though important part of it, to wit, the worship of a particular kind of tree. To write a general history of Aryan religion in all its many aspects as a worship of nature, of the dead, and so forth, would be a task equally beyond my powers and my ambition. ”
