I must not forget that we have a special debt to a single class. Life is a scale of degrees. Between rank and rank of our great men are wide intervals. Mankind have, in all ages, attached themselves to a few persons, who, either by the quality of that idea they embodied, or by the largeness of their reception, were entitled to the position of leaders and law-givers. These teach us the qualities of primary nature--admit us to the constitution of things. We swim, day by day, on a river of delusions, and are effectually amused with houses and towns in the air, of which the men about us are dupes. But life is a sincerity. In lucid intervals we say, "Let there be an entrance opened for me into realties; I have worn the fool's cap too long." We will know the meaning of our economies and politics. Give us the cipher, and, if persons and things are scores of a celestial music, let us read off the strains. We have been cheated of our reason; yet there have been sane men who enjoyed a rich and related existence. What they know they know for us. With each new mind, a new secret of nature transpires; nor can the Bible be closed until the last great man is born. These men correct the delirium of the animal spirits, make us considerate, and engage us to new aims and powers. The veneration of mankind selects these for the highest place. Witness the multitude of statues, pictures, and memorials which recall their genius in every city, village, house, and ship: "Ever their phantoms arise before us, Our loftier brothers, but one in blood; At bed and table they lord it o'er us, With looks of beauty, and words of good."