It lies, therefore, in the very nature of the case that religion, as religion, can give no real help to man in the understanding of himself and the world. Whatever good religion may appear to do is properly to be attributed to the non-religious forces with which it is associated. But religion, being properly concerned with the relations between man and mythical supernatural beings, can exert no real influence for good on human affairs. Far from that being the case, it can easily be shown to have had quite an opposite effect. There is not merely the waste of energy in the direction above indicated, but in many other ways. If we confine ourselves to Christianity some conception of the nature of its influence may be formed if we think what the state of the world might have been to-day had the work of enlightenment continued from the point it had reached under the old Greek and Roman civilizations. Bacon and Galileo in their prisons, Bruno and Vanini at the stake are illustrations of the disservice that Christianity has done the cause of civilization, and the obstruction it has offered to human well-being. Again, consider the incubus placed on human progress by the institution of a priesthood devoted to the service of supernatural beings. In the fullest and truest sense of the word a priesthood represents a parasitic growth on the social body. I am not referring to individual members of the priesthood in their capacity as private citizens, but as priests, as agents or representatives of the supernatural. And here the truth is that of all the inventions and discoveries that have helped to build up civilization not one of them is owing to the priesthood, as such. One may confidently say that if all the energies of all the priests in the whole world were concentrated on a single community, and all their prayers, formulae, and doctrines devoted to the one end, the well-being of that community would not be advanced thereby a single iota. Far and away, the priesthood is the greatest parasitic class the world has known. All over the world, in both savage and civilized times, we see the priesthoods of the world enthroned, we see them enjoying a subsistence wrung from toil through credulity, and from wealth through self-interest. From the savage medicine hut up to the modern cathedral we see the earth covered with useless edifices devoted to the foolish service of imaginary deities. We see the priesthood endowed with special privileges, their buildings relieved from the taxes which all citizens are compelled to pay, and even special taxes levied upon the public for their maintenance. The gods may no longer demand the sacrifice of the first born, but they still demand the sacrifice of time, energy, and money that might well be applied elsewhere. And the people in every country, out of their stupidity, continue to maintain a large body of men who, by their whole training and interest, are compelled to act as the enemies of liberty and progress.