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 and study; but was a martyr to sick-headaches all his life."

And no one looking into his habits of ceaseless over-study will wonder that he had sick-headaches. For he used the means which bring them and neglected the things which prevent them. Naturally strong, he seems to have had no regular—or irregular—habits of exercise, nothing to relieve a congested brain.

Fortunately we know a good deal about the body of this great man; of how he trained it; and how it