"The youthful brain should in general not be burdened with things ninety-five percent of which it cannot use and hence forgets again... In many cases, the material to be learned in the various subjects is so swollen that only a fraction of it remains in the head of the individual pupil, and only a fraction of this abundance can find application, while on the other hand it is not adequate for the man working and earning his living in a definite field."