Looking about among the Martians by whom we were surrounded, it soon became easy for us to tell who were the soldiers and who were the civilians, simply by the appearance of their bodies, and particularly of their heads. All members of the military class resembled, to a greater or less extent, the monarch himself, in that those parts of their skulls which our phrenologists had designated as the bumps of destructiveness, combativeness and so on were enormously and disproportionately developed.
And all this, we were assured, was completely under the control of the Martians themselves. They had learned, or invented, methods by which the brain itself could be manipulated, so to speak, and any desired portions of it could be especially developed, while other parts of it were left to their normal growth. The consequence was that in the Martian schools and colleges there was no teaching in our sense of the word. It was all brain culture.
A Martian youth selected to be a soldier had his fighting faculties especially developed, together with those parts of the brain which impart courage and steadiness of nerve. He who was intended for scientific investigation had his brain developed into a mathematical machine, or an instrument of observation. Poets and literary men had their heads bulging with the imaginative faculties. The heads of the inventors were developed into a still different shape.
"And so," said Aina, translating for us the words of a professor in the Imperial University of Mars, from whom we derived the greater part of our information on this subject, "the Martian boys do not study a subject; they do not have to learn it, but, when their brains have been sufficiently developed in the proper direction, they comprehend it instantly, by a kind of divine instinct."
But among the women of Mars, we saw none of these curious, and to our eyes, monstrous differences of development. While the men received, in addition to their special education, a broad general culture also, with the women there was no special education. It was all general in its character, yet thorough enough in that way. The consequence was that only female brains upon Mars were entirely well balanced. This was the reason why we invariably found the Martian women to be remarkably charming creatures, with none of those physical exaggerations and uncouth developments which disfigured their masculine companions.