65. Scattering no less than one-sidedness forms an antithesis to many-sidedness. Many-sidedness is to be the basis of virtue; but the latter is an attribute of personality, hence it is evident that the unity of self-consciousness must not be impaired. The business of instruction is to form the person on many sides, and accordingly to avoid a distracting or dissipating effect. And instruction has successfully avoided this in the case of one who with ease surveys his well-arranged knowledge _in all of its unifying relations_ and holds it together as _his very own_. This section points to the correlation of studies, a subject to be considered hereafter in detail. It also throws light upon the modern system of elective courses or elective studies in secondary and higher education. The teachable subjects have now become so numerous that election is imperative unless what is to be taught is determined arbitrarily without regard to the needs or inclinations of students. Furthermore, election is made imperative by the fact that the higher education is now open to all minds of all social classes, and that differentiated industry calls for many kinds of education. But the need for mental symmetry, no less imperative now than in the past, is reinforced by the need for social symmetry. Education must put the student into sympathetic touch with the whole of life, not a mere segment of it. Since many-sidedness cannot be interpreted to mean knowledge of all subjects, this being impossible, it must be interpreted to mean knowledge of all departments of learning. Election may be permitted to emphasize departments of study, but not to ignore them entirely. There are four or more languages worth teaching, many departments of history, numerous sciences, and various branches of mathematics, not to speak of the economic, political, and social sciences. Enough of each department being given to insure intelligent sympathy with the aspect of civilization it presents, the student may be allowed to place the emphasis upon such groups of studies as best conserve his tastes, his ability, and his destination in life. CHAPTER III =The Conditions of Many-sidedness= 66. It becomes obvious at once that a many-sided culture cannot be brought about quickly. The requisite store of ideas is acquired only by successive efforts; but unification, a view of the whole, and assimilation are to be attained besides (65), whence an alternation, in time, of absorption and reflection. The apprehension of the manifold is of necessity a gradual process, and the same is true of the unification of knowledge.