In course of time the slow advance of knowledge, which has dispelled so many cherished illusions, convinced at least the more thoughtful portion of mankind that the alterations of summer and winter, of spring and autumn, were not merely the result of their own magical rites, but that some deeper cause, some mightier power, was at work behind the shifting scenes of nature.

Chapter 29, The Myth of Adonis. - The Golden Bough (1890)