Good sense of the kind Dr. Johnson describes and decorum are not strictly speaking synonymous. To be decorous not only must one have a correct perception of what to do, but one must actually be able to do it; and this often requires a long and difficult training. We have seen that Rousseau’s spite against eighteenth-century Paris was largely due to the fact that he had not acquired young enough the habits that would have made it possible for him to conform to its convention. “I affected,” says Rousseau with singular candor, “to despise the politeness I did not know how to practice.” As a matter of fact he had never adjusted himself to the decorum and good sense of any community. His attitude towards life was fundamentally Bohemian. But a person who was sensible and decorous according to the standards of some other country might have emphasized the differences between his good sense and decorum and the good sense and decorum of eighteenth-century Paris. The opponents of the traditional order in the eighteenth century were fond of introducing some Persian or Chinese to whom this order seemed no true order at all but only “prejudice” or “abuse.” The conclusion would seem to be that because the good sense and decorum of one time and country do not coincide exactly with those of another time and country, therefore good sense and decorum themselves have in them no universal element, and are entirely implicated in the shifting circumstances of time and place. But behind the ethos of any particular country, that of Greece, for instance, there are, as Antigone perceived, the “unwritten laws of heaven,” and something of this permanent order is sure to shine through even the most imperfect convention. Though no convention is final, though man and all he establishes are subject to the law of change, it is therefore an infinitely delicate and perilous task to break with convention. One can make this break only in favor of insight; which is much as if one should say that the only thing that may safely be opposed to common sense is a commoner sense, or if one prefers, a common sense that is becoming more and more imaginative. Even so, the wiser the man, one may surmise, the less likely he will be to indulge in a violent and theatrical rupture with his age, after the fashion of Rousseau. He will like Socrates remember the counsel of the Delphian oracle to follow the “usage of the city,”[110] and while striving to gain a firmer hold upon the human law and to impose a more strenuous discipline upon his ordinary self, he will so far as possible conform to what he finds established. A student of the past cannot help being struck by the fact that men are found scattered through different times and countries and living under very different conventions who are nevertheless in virtue of their insight plainly moving towards a common centre. So much so that the best books of the world seem to have been written, as Emerson puts it, by one all-wise, all-seeing gentleman.