Unity is represented in social affairs by the institutions of community which tend to bind the people into a composite whole; Individuality, by the personal independence which liberates from the conventionalities of association and creates social freedom. In the religious domain, Unity is represented by faith, which is allied to the emotional or affectional nature, and is predominantly concessive, unquestioning, and submissive; Individuality, by the spirit of inquiry and investigation, which will only believe after intellectual examination and satisfaction. In political affairs, Unity is represented by the principle of leadership, seen, in its one-sided and imperfect form, in despotic or monarchical rule; Individuality, by the democratic principle of political equality. In science, the two principles have various analogues in different departments. In rational mechanics, unity is analogous to statics, and individuality to dynamics. In astronomy, unity to the centripetal, and individuality to the centrifugal force. Unity is allied to synthetical, and individuality to analytical chemistry. It will not be necessary to specify further analogies. These two principles are everywhere present throughout the universe; and it is through the mutual play of their opposite drifts, when rightly adjusted and balanced, that harmony is secured, as in the revolutions of the planets; while disharmony is the result, wherever it exists, of an undue preponderance, either of the tendency to unity, on the one hand, or of that to disunity or individuality, on the other. In virtue of this analysis, looking at the question solely from the stand point of abstract science, we should affirm that moral truth, as the analogue or representative of the principle of unity, and as the converging tendency, was exactly the equal and counterpart of intellectual truth, the analogue of the diverging tendency, represented by the principle of individuality. To assert the contrary, would be equivalent to averring that dynamics were more important agencies in mechanics than statics; that the centrifugal force was more essential to the harmonious movements of the heavenly bodies than the centripetal, because the functions of statics and centripetal force are more stationary in their nature; or that the head was more important than the heart, which two parts are, in the human organism, the respective representatives of intellect and affection, the basis of moral power.