Eugenics and Other Evils. Gilbert Keith Chesterton

doctor may say, "He has that look in the eyes, and he may take the hatchet and brain you all." But we do not object to the look in the eyes as such; we object to consequences which, once come, we should all call insane if there were no doctors in the world. We should say, "Let him look how he likes; as long as he does not look for the hatchet."

      Now, that specialists are valuable for this particular and practical purpose, of predicting the approach of enormous and admitted human calamities, nobody but a fool would deny. But that does not bring us one inch nearer to allowing them the right to define what is a calamity; or to call things calamities which common sense does not call calamities. We call in the doctor to save us from death; and, death being admittedly an evil, he has the right to administer the queerest and most recondite pill which he may think is a cure for all such menaces of death. He has not the right to administer death, as the cure for all human ills. And as he has no moral authority to enforce a new conception of happiness, so he has no moral authority to enforce a new conception of sanity. He may know I am going mad; for madness is an isolated thing like leprosy; and I know nothing about leprosy. But if he merely thinks my mind is weak, I may happen to think the same of his. I often do.

      In short, unless pilots are to be permitted to ram ships on to the rocks and then say that heaven is the only true harbour; unless judges are to be allowed to let murderers loose, and explain afterwards that the murder had done good on the whole; unless soldiers are to be allowed to lose battles and then point out that true glory is to be found in the valley of humiliation; unless cashiers are to rob a bank in order to give it an advertisement; or dentists to torture people to give them a contrast to their comforts; unless we are prepared to let loose all these private fancies against the public and accepted meaning of life or safety or prosperity or pleasure – then it is as plain as Punch's nose that no scientific man must be allowed to meddle with the public definition of madness. We call him in to tell us where it is or when it is. We could not do so, if we had not ourselves settled what it is.

      As I wish to confine myself in this chapter to the primary point of the plain existence of sanity and insanity, I will not be led along any of the attractive paths that open here. I shall endeavour to deal with them in the next chapter. Here I confine myself to a sort of summary. Suppose a man's throat has been cut, quite swiftly and suddenly, with a table knife, at a small table where we sit. The whole of civil law rests on the supposition that we are witnesses; that we saw it; and if we do not know about it, who does? Now suppose all the witnesses fall into a quarrel about degrees of eyesight. Suppose one says he had brought his reading-glasses instead of his usual glasses; and therefore did not see the man fall across the table and cover it with blood. Suppose another says he could not be certain it was blood, because a slight colour-blindness was hereditary in his family. Suppose a third says he cannot swear to the uplifted knife, because his oculist tells him he is astigmatic, and vertical lines do not affect him as do horizontal lines. Suppose another says that dots have often danced before his eyes in very fantastic combinations, many of which were very like one gentleman cutting another gentleman's throat at dinner. All these things refer to real experiences. There is such a thing as myopia; there is such a thing as colour-blindness; there is such a thing as astigmatism; there is such a thing as shifting shapes swimming before the eyes. But what should we think of a whole dinner party that could give nothing except these highly scientific explanations when found in company with a corpse? I imagine there are only two things we could think: either that they were all drunk, or they were all murderers.

      And yet there is an exception. If there were one man at table who was admittedly blind, should we not give him the benefit of the doubt? Should we not honestly feel that he was the exception that proved the rule? The very fact that he could not have seen would remind us that the other men must have seen. The very fact that he had no eyes must remind us of eyes. A man can be blind; a man can be dead; a man can be mad. But the comparison is necessarily weak, after all. For it is the essence of madness to be unlike anything else in the world: which is perhaps why so many men wiser than we have traced it to another.

      Lastly, the literal maniac is different from all other persons in dispute in this vital respect: that he is the only person whom we can, with a final lucidity, declare that we do not want. He is almost always miserable himself, and he always makes others miserable. But this is not so with the mere invalid. The Eugenists would probably answer all my examples by taking the case of marrying into a family with consumption (or some such disease which they are fairly sure is hereditary) and asking whether such cases at least are not clear cases for a Eugenic intervention. Permit me to point out to them that they once more make a confusion of thought. The sickness or soundness of a consumptive may be a clear and calculable matter. The happiness or unhappiness of a consumptive is quite another matter, and is not calculable at all. What is the good of telling people that if they marry for love, they may be punished by being the parents of Keats or the parents of Stevenson? Keats died young; but he had more pleasure in a minute than a Eugenist gets in a month. Stevenson had lung-trouble; and it may, for all I know, have been perceptible to the Eugenic eye even a generation before. But who would perform that illegal operation: the stopping of Stevenson? Intercepting a letter bursting with good news, confiscating a hamper full of presents and prizes, pouring torrents of intoxicating wine into the sea, all this is a faint approximation for the Eugenic inaction of the ancestors of Stevenson. This, however, is not the essential point; with Stevenson it is not merely a case of the pleasure we get, but of the pleasure he got. If he had died without writing a line, he would have had more red-hot joy than is given to most men. Shall I say of him, to whom I owe so much, let the day perish wherein he was born? Shall I pray that the stars of the twilight thereof be dark and it be not numbered among the days of the year, because it shut not up the doors of his mother's womb? I respectfully decline; like Job, I will put my hand upon my mouth.