Seeing that universal education has only come about within the latter part of the last
century it must be clear that the vast majority of the present generation of educated Europeans are descended from people who never had any of that education which so many people nowadays regard as essential to the development and growth of the intellectual powers. But although education has only recently become, in various degrees, common to all white people, the light of learning has always been kept burning, however dimly at times, in certain places and circles, and it may, perhaps, be possible to find people to-day who are the descendants of those favoured few who have enjoyed, during many unbroken generations, the privilege of liberal education. Now let us assume that there are at present a small number of such people in the forefront of the intellectual activity of the day, and then let us ask ourselves whether these leaders of thought who can claim long lineal descent from learned ancestors show any mental capacity over and above that which is displayed by those commoners who are also in the foremost ranks of thought and science, but who cannot lay claim to such continuous ancestral training.
If we admit the existence of two such separate classes to-day then the answer must surely be that there is no mental difference discernible between them. But I think we may safely conclude that there has been very little of the kind of descent here presumed. It would be well-nigh impossible to find people who could prove an unbroken lineage of educated forbears going back more than four hundred years. During the middle ages the monks of the Church were the chief and almost sole depositories of education and learning, and as they were bound by their vows to life-long celibacy there could be no transmission from them to posterity of any of that increased capacity of brain which we are supposing as having been acquired by each individual through his own mental exertion. We know, of course, that there were frequent lapses from the unnatural restraint imposed on these men so that some of them may have propagated their kind, but such illegitimate offspring was not likely to remain within the circle of learning and therefore could not perpetuate the line. We of to-day know full well that the son of the common labourer whose forefathers had
no education can, with equality of opportunity, achieve as much and travel as far in any field of mental activity as can the scion of the oldest of our most favoured families.
There does not seem to have been any augmentation of human brain power since written records of events were begun. Indeed it would seem rather as if there had been in many places a decrease in intellectual capacity, as when we compare the fellahin of modern Egypt with their great ancestors whom they resemble so closely in physical appearance that there can be little doubt about the purity of their descent. The same may be said about the modern descendants of the people who created "the glory that was Greece and the grandeur that was Rome." And when we consider the period of the Renaissance we cannot say that civilised man of to-day is superior to those people who after centuries of stagnation and general illiteracy were yet able to seize and develop the long-forgotten wisdom and philosophy of antiquity.
To go still further back and to venture beyond the historical horizon into the dim past when prehistoric man roamed over
Europe is a task manifestly beyond the powers of the ordinary layman, and here we must, perforce, trust ourselves to the guidance of those students whose training and special learning entitle them to speak with authority.
The so-called Piltdown skull which was discovered in 1912 is accepted as representing the most ancient of human remains yet found in England, its age being estimated at somewhere between 250,000 and 500,000 years. In discussing the size and arrangement of the lobes and convolutions of the brain which this cranium must have contained, Dr. Arthur Keith, who is admittedly the highest authority on the subject to-day, makes the following statement: "Unfortunately our knowledge of the brain, greatly as it has increased of late years, has not yet reached the point at which we can say after close examination of all the features of a brain that its owner has reached this or that status. The statement which Huxley made about the ancient human skull from the cave of Engis still holds good of the brain: 'It might have belonged to a philosopher or might have contained the thoughtless mind of a
savage.' That is only one side of our problem, there is another. Huxley's statement refers to the average brain, which is equal to the needs of both the philosopher and the savage. It does not in any way invalidate the truth that a small brain with a simple pattern of convolutions is a less capable organ than the large brain with a complex pattern. If then we find a fairly large brain in the Piltdown man, with an arrangement and development of convolutions not very unlike those of a modern man, we shall be justified in drawing the conclusion that, so far as potential mental ability is concerned, he has reached the modern standard. We must always keep in mind that accomplishments and inventions which seem so simple to us were new and unsolved problems to the pioneers who worked their way up from a simian to a human estate."
In his concluding remarks upon this important find, Dr. Keith iterates his opinion: "Although our knowledge of the human brain is limited—there are large areas to which we can assign no definite function—we may rest assured that a brain which was