68:4.7

The survival of a society depends chiefly on the progressive evolution of its mores. The process of custom evolution grows out of the desire for experimentation; new ideas are put forward—competition ensues. A progressing civilization embraces the progressive idea and endures; time and circumstance finally select the fitter group for survival. But this does not mean that each separate and isolated change in the composition of human society has been for the better. No! indeed no! for there have been many, many retrogressions in the long forward struggle of Urantia civilization.