Few persons would deny that we bring into the world an inheritance of mental and physical qualities derived first from our parents, or through them from some remoter ancestor, secondly from our race, thirdly from the general condition of mankind into which we are born. Nothing is commoner than the remark, that ‘So and so is like his father or his uncle’; and an aged person may not unfrequently note a resemblance in a youth to a long-forgotten ancestor, observing that ‘Nature sometimes skips a generation.’ It may be true also, that if we knew more about our ancestors, these similarities would be even more striking to us. Admitting the facts which are thus described in a popular way, we may however remark that there is no method of difference by which they can be defined or estimated, and that they constitute only a small part of each individual. The doctrine of heredity may seem to take out of our hands the conduct of our own lives, but it is the idea, not the fact, which is really terrible to us. For what we have received from our ancestors is only a fraction of what we are, or may become. The knowledge that drunkenness or insanity has been prevalent in a family may be the best safeguard against their recurrence in a future generation. The parent will be most awake to the vices or diseases in his child of which he is most sensible within himself. The whole of life may be directed to their prevention or cure. The traces of consumption may become fainter, or be wholly effaced: the inherent tendency to vice or crime may be eradicated. And so heredity, from being a curse, may become a blessing. We acknowledge that in the matter of our birth, as in our nature generally, there are previous circumstances which affect us. But upon this platform of circumstances or within this wall of necessity, we have still the power of creating a life for ourselves by the informing energy of the human will.
There is another aspect of the marriage question to which Plato is a stranger. All the children born in his state are foundlings. It never occurred to him that the greater part of them, according to universal experience, would have perished. For children can only be brought up in families. There is a subtle sympathy between the mother and the child which cannot be supplied by other mothers, or by ‘strong nurses one or more’ (Laws). If Plato’s ‘pen’ was as fatal as the Creches of Paris, or the foundling hospital of Dublin, more than nine-tenths of his children would have perished. There would have been no need to expose or put out of the way the weaklier children, for they would have died of themselves. So emphatically does nature protest against the destruction of the family.
What Plato had heard or seen of Sparta was applied by him in a mistaken way to his ideal commonwealth. He probably observed that both the Spartan men and women were superior in form and strength to the other Greeks; and this superiority he was disposed to attribute to the laws and customs relating to marriage. He did not consider that the desire of a noble offspring was a passion among the Spartans, or that their physical superiority was to be attributed chiefly, not to their marriage customs, but to their temperance and training. He did not reflect that Sparta was great, not in consequence of the relaxation of morality, but in spite of it, by virtue of a political principle stronger far than existed in any other Grecian state. Least of all did he observe that Sparta did not really produce the finest specimens of the Greek race. The genius, the political inspiration of Athens, the love of liberty — all that has made Greece famous with posterity, were wanting among the Spartans. They had no Themistocles, or Pericles, or Aeschylus, or Sophocles, or Socrates, or Plato. The individual was not allowed to appear above the state; the laws were fixed, and he had no business to alter or reform them. Yet whence has the progress of cities and nations arisen, if not from remarkable individuals, coming into the world we know not how, and from causes over which we have no control? Something too much may have been said in modern times of the value of individuality. But we can hardly condemn too strongly a system which, instead of fostering the scattered seeds or sparks of genius and character, tends to smother and extinguish them.
Still, while condemning Plato, we must acknowledge that neither Christianity, nor any other form of religion and society, has hitherto been able to cope with this most difficult of social problems, and that the side from which Plato regarded it is that from which we turn away. Population is the most untameable force in the political and social world. Do we not find, especially in large cities, that the greatest hindrance to the amelioration of the poor is their improvidence in marriage? — a small fault truly, if not involving endless consequences. There are whole countries too, such as India, or, nearer home, Ireland, in which a right solution of the marriage question seems to lie at the foundation of the happiness of the community. There are too many people on a given space, or they marry too early and bring into the world a sickly and half-developed offspring; or owing to the very conditions of their existence, they become emaciated and hand on a similar life to their descendants. But who can oppose the voice of prudence to the ‘mightiest passions of mankind’ (Laws), especially when they have been licensed by custom and religion? In addition to the influences of education, we seem to require some new principles of right and wrong in these matters, some force of opinion, which may indeed be already heard whispering in private, but has never affected the moral sentiments of mankind in general. We unavoidably lose sight of the principle of utility, just in that action of our lives in which we have the most need of it. The influences which we can bring to bear upon this question are chiefly indirect. In a generation or two, education, emigration, improvements in agriculture and manufactures, may have provided the solution. The state physician hardly likes to probe the wound: it is beyond his art; a matter which he cannot safely let alone, but which he dare not touch:
‘We do but skin and film the ulcerous place.’
When again in private life we see a whole family one by one dropping into the grave under the Ate of some inherited malady, and the parents perhaps surviving them, do our minds ever go back silently to that day twenty-five or thirty years before on which under the fairest auspices, amid the rejoicings of friends and acquaintances, a bride and bridegroom joined hands with one another? In making such a reflection we are not opposing physical considerations to moral, but moral to physical; we are seeking to make the voice of reason heard, which drives us back from the extravagance of sentimentalism on common sense. The late Dr. Combe is said by his biographer to have resisted the temptation to marriage, because he knew that he was subject to hereditary consumption. One who deserved to be called a man of genius, a friend of my youth, was in the habit of wearing a black ribbon on his wrist, in order to remind him that, being liable to outbreaks of insanity, he must not give way to the natural impulses of affection: he died unmarried in a lunatic asylum. These two little facts suggest the reflection that a very few persons have done from a sense of duty what the rest of mankind ought to have done under like circumstances, if they had allowed themselves to think of all the misery which they were about to bring into the world. If we could prevent such marriages without any violation of feeling or propriety, we clearly ought; and the prohibition in the course of time would be protected by a ‘horror naturalis’ similar to that which, in all civilized ages and countries, has prevented the marriage of near relations by blood. Mankind would have been the happier, if some things which are now allowed had from the beginning been denied to them; if the sanction of religion could have prohibited practices inimical to health; if sanitary principles could in early ages have been invested with a superstitious awe. But, living as we do far on in the world’s history, we are no longer able to stamp at once with the impress of religion