"Mankind have been slow to believe that order reigns in the universe — that the world is a cosmos and a chaos. The assertion of the reign of law has been stubbornly resisted at every step. The divinities of heathen superstition still linger in one form or another in the faith of the ignorant, and even intelligent men shrink from the contemplation of one supreme will acting regularly, not fortuitously, through laws beautiful and simple rather than through a fitful and capricious system of intervention."