The opposite extremes of human nature embrace, between them, a wonderful breadth and scope. The correlation and coaction of this multitude of opposing forces on the wide arena of the world naturally give rise to a series of manifestations, voluntary and involuntary, changeful in form and color as a phantasmagoria, fitful as a fever-dream, but steadfast and substantial in the infinite science, out of which all things come. The unity in this web of contradictions is its great wonder. How if this unity prove to be the law of which the oppositions are but one clause? How if the perfect unity were only attainable through the freedom of the natural diversity? And what is the substance and sum of this fundamental agreement? The desire of good, the progressive conception of which marks, more than anything else, the progress of the race. We cannot tell out of what dynamics comes the initial of this fruitful and productive opposition. It is, perhaps, the very unity of the object which develops the diversity of action. In the progress of human society the diversity becomes constantly multiplied. Is the sense of the unity lost in consequence? No, it grows constantly with the growth of this opposing fact. As education is enlarged, as freedom becomes more general and entire, the agreement of mankind becomes greater in the objects to be attained for the promotion of their best interests. We can suppose a family cast upon a barren shore, or forced to sit down in the midst of an uninhabited region. All of its members will wish to secure the necessary conditions of life, such as food, fuel, shelter, safety from destructive agencies. If left to themselves, one will naturally bestir himself to find fish, game, or fruits; another will bring in firewood; a third will plan a tent or hut; a fourth will stand sentry against any possible alarm. So a camp is a world in miniature; and if food and drink be plenty, and there be time to think of recreation, some one will carve a pipe from reed or willow, and, in answer to the piping, will come the dance. Or, if our pilgrims are too mystic and solemn for this, hymns will be sung, and the voice of prayer will lift the soul out of the poverty of its surroundings into that realm of imagination whose wealth far exceeds that of Ormus or of Ind.