LITMIR.BIZ

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employ as constantly as we do that one; and so I put it in the definition. I propose to define science as knowledge of reality because "truth" is used in such a variety of senses. I do not know whether it is possible for us ever to arrive at a knowledge of "the truth" in regard to any important matters. I doubt if it is possible. It is not important. It is the pursuit of truth which gives us life, and it is to that pursuit that our loyalty is due.

      What seems to me most important is that we should aim to get knowledge of realities, not of phantasms or words. By a phantasm I mean a mental conception which is destitute of foundation in fact, and of relations to the world of the senses. In the Middle Ages all men pursued phantasms; their highest interest was in another world which was a phantasm, and they were anxious about their fate in that world. They tried to provide for it by sacraments and rites which were fantastic in their form, and in their assumed relation to the desired end. They built up a great church corporation and endowed it with a large measure of control of human affairs so that it could provide for welfare in the other world. It had special functions which were fantastic with reference to the end which they were to accomplish because they contained no rational connection between means and ​ends. All the societal power which the church did not have was given to the Emperor, because in a certain text of Scripture mention was made of "two swords." The historical period was spent in a war between the Pope and the Emperor to see which should rule the other. The Crusades were an attempt to realize a great phantasm. Chivalry and the devotion to women were phantasms. The societal system was unreal; it assumed that men were originally in a state of slavery and that all rights which they had were due to gift from some sovereign. It resulted that only two men in the world, the Pope and the Emperor, had original and independent rights. The relation of classes, parties, and corporations in the society was therefore both loose and complicated. It is amazing to notice the effect of all this attention to unrealities on all the products of the Middle Ages. People had no idea of reality. Their poetry dealt with arbitrary inventions and demanded of the reader that he should accept tiresome conventions and stereotyped forms. They formed ideas of Cathay such as we meet with in the Arabian Nights, and they were ready to believe that there might be, in Cathay, any animal form which anybody's imagination could conceive, and any kind of a human figure, for instance, one with a countenance on the elbows or the knees. Theologians quarreled about whether Jesus and his disciples abjured property and lived by beggary, and whether the blood which flowed from the side of Jesus remained on earth or was taken up to heaven with him. The most noticeable fact is that all the disputants were ready to go to the stake, or to put the other party to the stake, according as either should prove to have the power. It was the rule of the game as they understood it and played it. It was another striking manifestation of the temper of the times that within ​a few days after the capture of Antioch, the poets in the several divisions of the successful army began to write the history of the conflict, not according to facts, but each glorifying the great men of his own group by ascribing to them great deeds such as the current poetry ascribed to legendary heroes. What could more strikingly show the absence of any notion of historic reality?

      Now, if you compare our world of ideas with that of the Middle Ages, the greatest difference is that we want reality beyond everything else. We do not demand the truth because we do not know where or how to get it. We do not want rationalism, because that is only a philosophy, and it has limitations like any other philosophy. We do not demand what is natural or realistic in the philosophical sense, because that would imply a selection of things, in operation all the time, before the things were offered to us. In zoology and anthropology we want to know all forms which really exist, but we have no patience with invented and imaginary forms. In history we do not allow documents to be prepared which will serve a purpose; to us, such documents would have the character of lies. That they would be edifying or patriotic does not excuse them. Probably modern men have no harder task than the application of the historic sense to cases in those periods of history when it was not thought wrong to manufacture such documents as one's cause required.

      The modern study of nature has helped to produce this way of looking at things, and the way of looking at things has made science possible. I want to have the notion of science built on this thirst for reality, and respond to it at every point. There may be knowledge of reality whose utility we do not know, but it would be overbold for any one to say that any knowledge of reality is useless.

      ​Since our ancestors devoted so much attention to phantasms and left us piles of big books about them, one great department of science must be criticism, by which we discern between the true and the false. There is one historical case of this requirement which always rises before my mind whenever I think of the need of criticism—that is witch-persecution. Although the church had a heavy load of blame for this frightful abuse, yet the jurists were more to blame. As to the church also, the Protestants, especially the Puritans of Scotland, were as bad as the Roman Catholics. Witch-persecution is rooted in demonism, which is the oldest, widest, and most fundamental form of religion. Whenever religion breaks down there is always produced a revival of demonism. The developments of it may be traced from early Chaldæa. It was believed that demons and women fell in love and begot offspring. Nightmare, especially in the forms experienced on mountains, led to notions of midnight rides, and Walpurgis-Nacht assemblies; then the notion of obscene rites was added. It was believed that witches could provoke great storms and convulsions of nature; all remarkable instances of calamity or good luck, especially if it affected one or a few, were ascribed to them. Especially hail-storms and tornadoes, which sometimes destroy crops over a very limited area, but spare all the rest, were thought to be their work. It was believed that they could transfer good crops from their neighbors' fields to their own. Here we see how phantasms grow. The bulls of popes summed up and affirmed the whole product as fact. Then, too, all the apparatus of pretended investigation and trial which the Inquisition had developed was transferred to the witch-trials. As women chiefly were charged with witchcraft, the result was that all this accumulation of superstition, ​folly, and cruelty was turned against them. If we try to form an idea of the amount of suffering which resulted, our hearts stand still with horror.

      Now there are some strong reasons for the faith in witchcraft. Everybody believed that witches existed, that they could enter into contracts with demons, and could get supernatural aid to carry out their purposes in this world. All the accused witches believed this. It was held to be wicked to make use of witches or demons, but it was believed that there were possible ways of accomplishing human purposes by employing them. Consequently when men or women wanted wealth, or office, or honor, or great success, or wanted to inspire love, or to gratify hate, envy, and vengeance, or wanted children, or wanted to prevent other people from having children, this way was always supposed to be open. No doubt very many of them tried it, at least in homely and silly ways—when put to the torture they confessed it. Then, too, somnambulism, dreams, and nightmare took forms which ran on the lines of popular superstition, and many a woman charged with witchcraft did not know but she had been guilty of it to some extent and without conscious knowledge. Again, the Scripture argument for demonism and witchcraft was very strong. It was this pitfall which caught the Protestants; how could they deny that there are any witches when the Bible says: "Thou shalt not suffer a witch to live." Witches were persons who had gone over to the side of Satan and his hosts in their war on God; they were enemies of the human race. The deductions from the primary fantastic notion of demons were all derived on direct and indisputable lines, and those deductions ruled the thought of Christian Europe for five hundred years.

      What was wanted to put a stop to the folly and ​wickedness was criticism. The case shows us that we men, including the greatest and best of us, may fall at any time under the dominion of such a mania, unless we are trained in methods of critical thinking. A series of great sceptics from Montaigne to Voltaire met the witch doctrines with scorn and derision. They were not afraid to deny the existence of demons. It appears also that the so-called common-sense of the crowd revolted at the absurdities of witchcraft. Every person who was executed as a witch named, under torture, others, who were then arrested, tortured, and executed; each of these named others, and so the witch-judges found that they were driven on, by judicial execution of the most cruel form, to depopulate a whole territory. It was a critical revolt when they saw this construction of their own conduct and turned against it. When we read the story we are amazed that good and honest men could have gone on for centuries inflicting torture of the extremest

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