“In every age everybody knows that up to his own time, progressive improvement has been taking place; nobody seems to reckon on any improvement in the next generation. We cannot absolutely prove that those are in error who say society has reached a turning point – that we have seen our best days. But so said all who came before us and with just as much apparent reason. ... On what principle is it that with nothing but improvement behind us, we are to expect nothing but deterioration before us?”