To this view it may be said in objection that we, not they, are masters of the world. That has nothing to do with it; to insect civilization dominion may not be at all desirable. But are we masters? Wait till we have subdued the red flea and the house-fly; then, as we lay off our armor, we may more becomingly boast. 1903. THE ART OF CONTROVERSY I One who has not lived a life of controversy, yet has some knowledge of its laws and methods, would, I think, find a difficulty in conceiving the infantile ignorance of the race in general as to what constitutes argument, evidence and proof. Even lawyers and judges, whose profession it is to consider evidence, to sift it and pass upon it, are but little wiser in that way than others when the matter in hand is philosophy, or religion, or something outside the written law. Concerning these high themes, I have heard from the lips of hoary benchers so idiotic argument based on so meaningless evidence as made me shudder at the thought of being tried before them on an indictment charging me with having swallowed a neighbor’s step-ladder. Yet doubtless in a matter of mere law these venerable babes would deliver judgment that would be roughly reasonable and approximately right. The theologian, on the contrary, is never so irrational as in his own trade; for, whatever religion may be, theology is a thing of unreason altogether, an edifice of assumptions and dreams, a superstructure without a substructure, an invention of the devil. It is to religion what law is to justice, what etiquette is to courtesy, astrology to astronomy, alchemy to chemistry and medicine to hygiene. The theologian can not reason, for persons who can reason do not go in for theology. Its name refutes it: theology means discourse of God, concerning whom some of its expounders say that he has no existence and all the others that he can not be known. I set out to show the folly of men who think they think—to give a few typical examples of what they are pleased to call “evidence” supporting their views. I shall take them from the work of a man of far more than the average intelligence dealing with the doctrine of immortality. He is a believer and thinks it possible that immortal human souls are on an endless journey from star to star, inhabiting them in turn. And he “proves” it thus: “No one thinks of space without knowing that it can be traversed; consequently the conception of space implies the ability to traverse it.” But how far? He could as cogently say: “No one thinks of the ocean without knowing that it can be swum in; consequently the conception of ocean implies the ability to swim from New York to Liverpool.” Here is another precious bit of testimony: “The fact that man can conceive the idea of space without beginning or end implies that man is on a journey without beginning or end. In fact, it is strong evidence of the immortality of man.”