The truth is, laws, religions, creeds, and systems of ethics, instead of making society better than its best unit, make it worse than its average unit, because they are never up to date. You will ask me: "Why have them at all?" I will tell you. They are made necessary, though we all secretly detest them, by the fact that the number of people who can think out a line of conduct for themselves even on one point is very small, and the number who can afford the time for it still smaller. Nobody can afford the time to do it on all points. The professional thinker may on occasion make his own morality and philosophy as the cobbler may make his own boots; but the ordinary man of business must buy at the shop, so to speak, and put up with what he finds on sale there, whether it exactly suits him or not, because he can neither make a morality for himself or do without one. This typewriter with which I am writing is the best I can get; but it is by no means a perfect instrument; and I have not the smallest doubt that in fifty years time authors will wonder how men could have put up with so clumsy a contrivance. When a better one is invented I shall buy it: until then, not being myself an inventor, I must make the best of it, just as my Protestant and Roman Catholic and Agnostic friends make the best of their imperfect creeds and systems. Oh, Father Tucker, worshipper of Liberty, where shall we find a land where the thinking and moralizing can be done without division of labor?
Besides, what have deep thinking and moralizing to do with the most necessary and least questionable side of law? Just consider how much we need law in matters which have absolutely no moral bearing at all. Is there anything more aggravating than to be told, when you are socially promoted, and are not quite sure how to behave yourself in the circles you enter for the first time, that good manners are merely a matter of good sense, and that rank is but the guinea's stamp: the man's the gowd for a' that? Imagine taking the field with an army which knew nothing except that the soldier's duty is to defend his country bravely, and think, not of his own safety, nor of home and beauty, but of England! Or of leaving the traffic of Piccadilly or Broadway to proceed on the understanding that every driver should keep to that side of the road which seemed to him to promote the greatest happiness of the greatest number! Or of stage-managing Hamlet by assuring the Ghost that whether he entered from the right or the left could make no difference to the greatness of Shakespear's play, and that all he need concern himself about was holding the mirror up to nature! Law is never so necessary as when it has no ethical significance whatever, and is pure law for the sake of law. The law that compels me to keep to the left when driving along Oxford Street is ethically senseless, as is shewn by the fact that keeping to the right answers equally well in Paris; and it certainly destroys my freedom to choose my side; but by enabling me to count on everyone else keeping to the left also, thus making traffic possible and safe, it enlarges my life and sets my mind free for nobler issues. Most laws, in short, are not the expression of the ethical verdicts of the community, but pure etiquet and nothing else. What they do express is the fact that over most of the field of social life there are wide limits within which it does not matter what people do, though it matters enormously whether under given circumstances you can depend on their all doing the same thing. The wasp, who can be depended on absolutely to sting you if you squeeze him, is less of a nuisance than the man who tries to do business with you not according to the customs of business, but according to the Sermon on the Mount, or than the lady who dines with you and refuses, on republican and dietetic principles, to allow precedence to a duchess or to partake of food which contains uric acid. The ordinary man cannot get through the world without being told what to do at every turn, and basing such calculations as he is capable of on the assumption that everyone else will calculate on the same assumptions. Even your man of genius accepts a hundred rules for every one he challenges; and you may lodge in the same house with an Anarchist for ten years without noticing anything exceptional about him. Martin Luther, the priest, horrified the greater half of Christendom by marrying a nun, yet was a submissive conformist in countless ways, living orderly as a husband and father, wearing what his bootmaker and tailor made for him, and dwelling in what the builder built for him, although he would have died rather than take his Church from the Pope. And when he got a Church made by himself to his liking, generations of men calling themselves Lutherans took that Church from him just as unquestioningly as he took the fashion of his clothes from his tailor. As the race evolves, many a convention which recommends itself by its obvious utility to everyone passes into an automatic habit, like breathing. Doubtless also an improvement in our nerves and judgment may enlarge the list of emergencies which individuals may be trusted to deal with on the spur of the moment without reference to regulations; but a ready-made code of conduct for general use will always be needed as a matter of overwhelming convenience by all members of communities.
by George Bernard Shaw