Heredity is on the side of superstition. All our ignorance pleads for the old. In most men there is a feeling that their ancestors were exceedingly good and brave and wise, and that in all things pertaining to religion their conclusions should be followed. They believe that their fathers and mothers were of the best, and that that which satisfied them should satisfy their children. With a feeling of reverence they say that the religion of their mother is good enough and pure enough and reasonable enough for them. In this way the love of parents and the reverence for ancestors have unconsciously bribed the reason and put out, or rendered exceedingly dim, the eyes of the mind. There is a kind of longing in the heart of the old to live and die where their parents lived and died--a tendency to go back to the homes of their youth. Around the old oak of manhood grow and cling these vines. Yet it will hardly do to say that the religion of my mother is good enough for me, any more than to say the geology or the astronomy or the philosophy of my mother is good enough for me. Every human being is entitled to the best he can obtain; and if there has been the slightest improvement on the religion of the mother, the son is entitled to that improvement, and he should not deprive himself of that advantage by the mistaken idea that he owes it to his mother to perpetuate, in a reverential way, her ignorant mistakes. If we are to follow the religion of our fathers and mothers, our fathers and mothers should have followed the religion of theirs. Had this been done, there could have been no improvement in the world of thought. The first religion would have been the last, and the child would have died as ignorant as the mother. Progress would have been impossible, and on the graves of ancestors would have been sacrificed the intelligence of mankind.