Just as, in general, the racial quality is the preliminary condition for the mental efficiency of any given human material, the training of the individual will first of all have to be directed towards the development of sound bodily health. For the general rule is that a strong and healthy mind is found only in a strong and healthy body. The fact that men of genius are sometimes not robust in health and stature, or even of a sickly constitution, is no proof against the principle I have enunciated. These cases are only exceptions which, as everywhere else, prove the rule. But when the bulk of a nation is composed of physical degenerates it is rare for a great spirit to arise from such a miserable motley. And in any case his activities would never meet with great success. A degenerate mob will either be incapable of understanding him