'That future progress of civilisation which the never-ceasing pressure of population must produce, will be accompanied by an enhanced cost of Individuation, both in structure and function; and more especially in nervous structure and function. The peaceful struggle for existence in societies ever growing more crowded and more complicated, must have for its concomitant an increase of the great nervous centres in mass, in complexity, in activity. The larger body of emotion needed as a fountain of energy for men who have to hold their places and rear their families under the intensifying competition of social life, is, other things equal, the correlative of larger brain. Those higher feelings presupposed by the better self-regulation which, in a better society, can alone enable the individual to leave a persistent posterity, are, other things equal, the correlatives of a more complex brain; as are also those more numerous, more varied, more general, and more abstract ideas, which must also become increasingly requisite for successful life as society advances. And the genesis of this larger quantity of feeling and thought in a brain thus augmented in size and developed in structure, is, other things equal, the correlative of a greater wear of nervous tissue and greater consumption of materials to repair it. So that both in original cost of construction and in subsequent cost of working, the nervous system must become a heavier tax on the organism. Already the brain of the civilised man is larger by nearly thirty percent, than the brain of the savage. Already, too, it presents an increased heterogeneity—especially in the distribution of its convolutions. And further changes like these which have taken place under the discipline of civilised life, we infer will continue to take place.... But everywhere and always, evolution is antagonistic to procreative dissolution. Whether it be in greater growth of the organs which subserve self-maintenance, whether it be in their added complexity of structure, or whether it be in their higher activity, the abstraction of the required materials implies a diminished reserve of materials for race-maintenance. And we have seen reason to believe that this antagonism between Individuation and Genesis becomes unusually marked where the nervous system is concerned, because of the costliness of nervous structure and function. In Section 346 was pointed out the apparent connection between high cerebral development and prolonged delay of sexual maturity; and in Sections 366, 367, the evidence went to show that where exceptional fertility exists there is sluggishness of mind, and that where there has been during education excessive expenditure in mental action, there frequently follows a complete or partial infertility. Hence the particular kind of further evolution which Man is hereafter to undergo, is one which, more than any other, may be expected to cause a decline in his power of reproduction.'
This means that men who have to live an intellectual life, or who can be induced to lead one, will be likely not to have so many children as they would otherwise have had. In particular cases this may not be true; such men may even have many children—they may be men in all ways of unusual power and vigour. But they will not have their maximum of posterity—will not have so many as they would have had if they had been careless or thoughtless men; and so, upon an average, the issue of such intellectualised men will be less numerous than those of the unintellectual.
Now, supposing this philosophical doctrine to be true—and the best philosophers, I think, believe it—its application to the case in hand is plain. Nothing promotes intellect like intellectual discussion, and nothing promotes intellectual discussion so much as government by discussion. The perpetual atmosphere of intellectual inquiry acts powerfully, as everyone may see by looking about him in London, upon the constitution both of men and women. There is only a certain QUANTUM of power in each of our race; if it goes in one way it is spent, and cannot go in another. The intellectual atmosphere abstracts strength to intellectual matters; it tends to divert that strength—which the circumstances of early society directed to the multiplication of numbers; and as a polity of discussion tends, above all things, to produce an intellectual atmosphere, the two things which seemed so far off have been shown to be near, and free government has, in a second case, been shown to tend to cure an inherited excess of human nature.
Lastly, a polity of discussion not only tends to diminish our inherited defects, but also, in one case at least, to augment a heritable excellence. It tends to strengthen and increase a subtle quality or combination of qualities singularly useful in practical life-a quality which it is not easy to describe exactly, and the issues of which it would require not a remnant of an essay, but a whole essay to elucidate completely. This quality I call ANIMATED MODERATION.
If anyone were asked to describe what it is which distinguishes the writings of a man of genius who is also a great man of the world from all other writings, I think he would use these same words, 'animated moderation.' He would say that such writings are never slow, are never excessive, are never exaggerated; that they are always instinct with judgment, and yet that judgment is never a dull judgment; that they have as much spirit in them as would go to make a wild writer, and yet that every line of them is the product of a sane and sound writer. The best and almost perfect instance of this in English is Scott. Homer was perfect in it, as far as we can judge; Shakespeare is often perfect in it for long together, though then, from the defects of a bad education and a vicious age, all at once he loses himself in excesses. Still, Homer, and Shakespeare at his best, and Scott, though in other respects so unequal to them, have this remarkable quality in common—this union of life with measure, of spirit with reasonableness.
In action it is equally this quality in which the English—at least so I claim it for them—excel all other nations. There is an infinite deal to be laid against us, and as we are unpopular with most others, and as we are always grumbling at ourselves, there is no want of people to say it. But, after all, in a certain sense, England is a success in the world; her career has had many faults, but still it has been, a fine and winning career upon the whole. And this on account of the exact possession of this particular quality. What is the making of a successful merchant? That he has plenty of energy, and yet that he does not go too far. And if you ask for a description of a great practical Englishman, you will be sure to have this, or something like it, 'Oh, he has plenty of go in him; but he knows when to pull up.' He may have all other defects in him; he may be coarse, he may be illiterate, he may be stupid to talk to; still this great union of spur and bridle, of energy and moderation, will remain to him. Probably he will hardly be able to explain why he stops when he does stop, or why he continued to move as long as he, in fact, moved; but still, as by a rough instinct, he pulls up pretty much where he should, though he was going at such a pace before.
There is no better example of this quality in English statesmen than Lord Palmerston. There are, of course, many most serious accusations to be made against him. The sort of homage with which he was regarded in the last years of his life has passed away; the spell is broken, and the magic cannot be again revived. We may think that his information was meagre, that his imagination was narrow, that his aims were short—sighted and faulty. But though we may often object to his objects, we rarely find much to criticise in his means. 'He went,' it has been said, 'with a great swing;' but he never tumbled over; he always managed to pull up 'before there was any danger.' He was an odd man to have inherited Hampden's motto; still, in fact, there was a great trace in him of mediocria firma—as much, probably, as there could be in anyone of such great vivacity and buoyancy.
It is plain that this is a quality which as much as, if not more than, any other multiplies good results in practical life. It enables men to see what is good; it gives them intellect enough for sufficient perception; but it does not make men all intellect; it does not' sickly them o'er with the pale cast of thought;' it enables them to do the good things they see to be good, as well as to see that they are good. And it is plain that a government by popular discussion tends to produce this quality. A strongly idiosyncratic mind, violently disposed to extremes of opinion, is soon weeded out of political life, and a bodiless thinker, an ineffectual scholar, cannot even live there for a day. A vigorous moderateness in mind and body is the rule of a polity which works by discussion; and, upon the whole, it is the kind of temper most suited to the active life of such a being as man in such a world as the present one.
These three great benefits of free government, though great, are entirely secondary to its continued usefulness in the mode in which it originally was useful. The first great benefit was the deliverance of mankind from the superannuated yoke of customary law, by the gradual development of an inquisitive originality. And it continues to produce that effect upon persons apparently far remote from its influence, and on subjects with which it has nothing to do. Thus Mr. Mundella, a most experienced and capable judge, tells us that the English artisan, though so much less sober, less instructed, and less refined than the artisans of some other countries, is yet more inventive than any other artisan. The master will get more good suggestions from him than from any other.
Again, upon plausible grounds—looking, for example, to the position of Locke and Newton in the science of the last century, and to that of Darwin in our own—it may be argued that there is some quality in English thought which makes them strike out as many, if not more, first-rate and original suggestions than nations of greater scientific culture and more diffused scientific interest. In both cases I believe the reason of the English originality to be that government by discussion quickens and enlivens thought all through society; that it makes people think no harm may come of thinking; that in England this force has long been operating, and so it has developed more of all kinds of people ready to use their mental energy in their own way, and not ready to use it in any other way, than a despotic government. And so rare is great originality among mankind, and so great are its fruits, that this one benefit of free government probably outweighs what are in many cases its accessory evils. Of itself it justifies, or goes far to justify, our saying with Montesquieu, 'Whatever be the cost of this glorious liberty, we must be content to pay it to heaven.'