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 a new prohibition. A free agent cannot have his fancies regulated by law; and the execution of the law would be rendered impossible, owing to the uncertainty of the cases in which marriage was to be forbidden. Who can weigh virtue, or even fortune against health, or moral and mental qualities against bodily? Who can measure probabilities against certainties? There has been some good as well as evil in the discipline of suffering; and there are diseases, such as consumption, which have exercised a refining and softening influence on the character. Youth is too inexperienced to balance such nice considerations; parents do not often think of them, or think of them too late. They are at a distance and may probably be averted; change of place, a new state of life, the interests of a home may be the cure of them. So persons vainly reason when their minds are already made up and their fortunes irrevocably linked together. Nor is there any ground for supposing that marriages are to any great extent influenced by reflections of this sort, which seem unable to make any head against the irresistible impulse of individual attachment.
Lastly, no one can have observed the first rising flood of the passions in youth, the difficulty of regulating them, and the effects on the whole mind and nature which follow from them, the stimulus which is given to them by the imagination, without feeling that there is something unsatisfactory in our method of treating them. That the most important influence on human life should be wholly left to chance or shrouded in mystery, and instead of being disciplined or understood, should be required to conform only to an external standard of propriety — cannot be regarded by the philosopher as a safe or satisfactory condition of human things. And still those who have the charge of youth may find a way by watchfulness, by affection, by the manliness and innocence of their own lives, by occasional hints, by general admonitions which every one can apply for himself, to mitigate this terrible evil which eats out the heart of individuals and corrupts the moral sentiments of nations. In no duty towards others is there more need of reticence and self-restraint. So great is the danger lest he who would be the counsellor of another should reveal the secret prematurely, lest he should get another too much into his power; or fix the passing impression of evil by demanding the confession of it.
Nor is Plato wrong in asserting that family attachments may interfere with higher aims. If there have been some who ‘to party gave up what was meant for mankind,’ there have certainly been others who to family gave up what was meant for mankind or for their country. The cares of children, the necessity of procuring money for their support, the flatteries of the rich by the poor, the exclusiveness of caste, the pride of birth or wealth, the tendency of family life to divert men from the pursuit of the ideal or the heroic, are as lowering in our own age as in that of Plato. And if we prefer to look at the gentle influences of home, the development of the affections, the amenities of society, the devotion of one member of a family for the good of the others, which form one side of the picture, we must not quarrel with him, or perhaps ought rather to be grateful to him, for having presented to us the reverse. Without attempting to defend Plato on grounds of morality, we may allow that there is an aspect of the world which has not unnaturally led him into error.
We hardly appreciate the power which the idea of the State, like all other abstract ideas, exercised over the mind of Plato. To us the State seems to be built up out of the family, or sometimes to be the framework in which family and social life is contained. But to Plato in his present mood of mind the family is only a disturbing influence which, instead of filling up, tends to disarrange the higher unity of the State. No organization is needed except a political, which, regarded from another point of view, is a military one. The State is all-sufficing for the wants of man, and, like the idea of the Church in later ages, absorbs all other desires and affections. In time of war the thousand citizens are to stand like a rampart impregnable against the world or the Persian host; in time of peace the preparation for war and their duties to the State, which are also their duties to one another, take up their whole life and time. The only other interest which is allowed to them besides that of war, is the interest of philosophy. When they are too old to be soldiers they are to retire from active life and to have a second novitiate of study and contemplation. There is an element of monasticism even in Plato’s communism. If he could have done without children, he might have converted his Republic into a religious order. Neither in the Laws, when the daylight of common sense breaks in upon him, does he retract his error. In the state of which he would be the founder, there is no marrying or giving in marriage: but because of the infirmity of mankind, he condescends to allow the law of nature to prevail.
(c) But Plato has an equal, or, in his own estimation, even greater paradox in reserve, which is summed up in the famous text, ‘Until kings are philosophers or philosophers are kings, cities will never cease from ill.’ And by philosophers he explains himself to mean those who are capable of apprehending ideas, especially the idea of good. To the attainment of this higher knowledge the second education is directed. Through a process of training which has already made them good citizens they are now to be made good legislators. We find with some surprise (not unlike the feeling which Aristotle in a well-known passage describes the hearers of Plato’s lectures as experiencing, when they went to a discourse on the idea of good, expecting to be instructed in moral truths, and received instead of them arithmetical and mathematical formulae) that Plato does not propose for his future legislators any study of finance or law or military tactics, but only of abstract mathematics, as a preparation for the still more abstract conception of good. We ask, with Aristotle, What is the use of a man knowing the idea of good, if he does not know what is good for this individual, this state, this condition of society? We cannot understand how Plato’s legislators or guardians are to be fitted for their work of statesmen by the study of the five mathematical sciences. We vainly search in Plato’s own writings for any explanation of this seeming absurdity.
The discovery of a great metaphysical conception seems to ravish the mind with a prophetic consciousness which takes away the power of estimating its value. No metaphysical enquirer has ever fairly criticised his own speculations; in his own judgment they have been above criticism; nor has he understood that what to him seemed to be absolute truth may reappear in the next generation as a form of logic or an instrument of thought. And posterity have also sometimes equally misapprehended the real value of his speculations. They appear to them to have contributed nothing to the stock of human knowledge. The IDEA of good is apt to be regarded by the modern thinker as an unmeaning abstraction; but he forgets that this abstraction is waiting ready for use, and will hereafter be filled up by the divisions of knowledge. When mankind do not as yet know that the world is subject to law, the introduction of the mere conception of law or design or final cause, and the far-off anticipation of the harmony of knowledge, are great steps onward. Even the crude generalization of the unity of all things leads men to view the world with different eyes, and may easily affect their conception of human life and of politics, and also their own conduct and character (Tim). We can imagine how a great mind like that of Pericles might derive elevation from his intercourse with Anaxagoras (Phaedr.). To be struggling towards a higher but unattainable conception is a more favourable intellectual condition than to rest satisfied in a narrow portion of ascertained fact. And the earlier, which have
