By calling evolution fact, the process of evolution is removed from dispute; it is no longer merely a scientific construct, but now stands apart from humankind and its perceptual frailties. Sagan apparently wishes to accomplish what Peter Berger calls `objectification,’ the attribution of objective reality to a humanly produced concept . . With evolution no longer regarded as a mere human construct, but now as a part of the natural order of the cosmos, evolution becomes a sacred archetype against which human actions can be weighed. Evolution is a sacred object or process in that it becomes endowed with mysterious and awesome power.
Lessl, T., Science and the Sacred Cosmos: The Ideological Rhetoric of Carl Sagan, Quarterly Journal of Speech, 71:178 (1985).