“For a theoretical physicist such as myself, for an astronomer accustomed to thinking about the endless expanse of more than a hundred billion galaxies, each one consisting of more than a hundred billion stars, each one with its garland of planets, on one of which we dwell for a brief and fugitive moment, like specks of infinitesimal dust lost in the endlessness of the cosmos, this seems no more than obvious. Every anthropocentrism pales into insignificance in the face of this immensity. This is naturalism.”