* Lincoln's melancholy never failed to impress any man who ever saw or knew him. The perpetual look of sadness was his most prominent feature. The cause of this peculiar condition was a matter of frequent discussion among his friends. John T. Stuart said it was due to his abnormal digestion. His liver failed to work properly--did not secrete bile--and his bowels were equally as inactive. "I used to advise him to take blue-mass pills," related Stuart, "and he did take them before he went to Washington, and for five months while he was President, but when I came on to Congress he told me he had ceased, using them because they made him cross." The reader can hardly realize the extent of this peculiar tendency to gloom. One of Lincoln's colleagues in the Legislature of Illinois is authority for the statement coming from Lincoln himself that this "mental depression became so intense at times he never dared carry a pocket knife." Two things greatly intensified his characteristic sadness: one was the endless succession of troubles in his domestic life, which he had to bear in silence; and the other was unquestionably the knowledge of his own obscure and lowly origin. The recollection of these things burned a deep impress on his sensitive soul. As to the cause of this morbid condition my idea has always been that it was occult, and could not be explained by any course of observation and reasoning. It was ingrained, and, being ingrained, could not be reduced to rule, or the cause arrayed. It was necessarily hereditary, but whether it came down from a long line of ancestors and far back, or was simply the reproduction of the saddened life of Nancy Hanks, cannot well be determined. At any rate it was part of his nature, and could no more be shaken off than he could part with his brains. He was gloomy, abstracted, and joyous--rather humorous--by turns; but I do not think he knew what real joy was for many years. Mr. Lincoln sometimes walked our streets cheerily, he was not always gloomy, and then it was that on meeting a friend he greeted him with plain "Howd'y?" clasping his hand in both of his own, and gave him a hearty soul-welcome. On a winter's morning he might be seen stalking towards the market-house, basket on arm, his old gray shawl wrapped around his neck, his little boy Willie or Tad running along at his heels asking a thousand boyish questions, which his father, in deep abstraction, neither heeded nor heard.*