“His is one of those cases which are more numerous than those suppose who have never lived anywhere but in their own homes, and never walked but in one line from their cradles to their graves. We must come down from our heights, and leave our straight paths for the by-ways and low places of life, if we would learn truths by strong contrasts; and in hovels, in forecastles, and among our own outcasts in foreign lands, see what has been wrought among our fellow-creatures by accident, hardship, or vice.”