If mankind were all intellect, they would be continually changing, so that one age would be entirely unlike another. The great conservative is the heart, which remains the same in all ages; so that commonplaces of a thousand years' standing are as effective as ever.
Genius, indeed, melts many ages into one, and thus effects something permanent, yet still with a similarity of office to that of the more ephemeral writer. A work of genius is but the newspaper of a century, or perchance of a hundred centuries.