The complaint that there is lack of fit human material would probably never entirely disappear, as with a better adjustment of the material, the demands would steadily increase; but it could at least be predicted with high probability that this lack of really fit material would not be felt so keenly everywhere if the really decisive factor for the adjustment of personality and vocation, namely, the dispositions of the mind, were not so carelessly ignored.
Society, to be sure, has a convenient means of correction. The individual tries, and when he is doing his work too badly, he loses his job, he is pushed out from the career which be has chosen, with the great probability that he will be crushed by the wheels of social life. It is a rare occurrence for the man who is a failure in his chosen vocation, and who has been thrown out of it, to happen to come into the career in which he can make a success. Social statistics show with an appalling clearness what a burden and what a danger to the social body is growing from the masses of those who do not succeed and who by their lack of success become discouraged and embittered.
The social psychologist cannot resist the conviction that every single one could have found a place in which he could have achieved something of value for the commonwealth. The laborer, who in spite of his best efforts shows himself useless and clumsy before one machine, might perhaps have done satisfactory work in the next mill where the machines demand another type of mental reaction. His psychical rhythm and his inner functions would be able to adjust themselves to the requirements of the one kind of labor and not to those of the other.