It is related of Schopenhauer that he was in the habit of putting down a gold piece on the _table d'hôte_ where he dined, and of taking it up again when the dinner was ended. This gold piece, he explained to his Boswell, was for the waiter the first time that any one of the different officers, who frequented the dining-room, was heard discussing a loftier topic than that which is circled in wine, woman, and song. As the story runs, no occasion ever presented itself in which he could in this manner express his pleasure and contentment; but had he lived long enough to meet Lieutenant Von Hartmann there is little doubt that the gold piece would have formed an immediate and rightful part of the waiter's perquisites. This gentleman, who is now no longer an officer, but simply a thinker and a man of letters, may, in many respects, be regarded as Schopenhauer's direct descendant. To the world at large very little concerning him is known, and that little is contained in a modest autobiography which appeared a few years ago, and to which his publisher has since added a supplement. The meagre details that are furnished therein amount, in brief, to this: Eduard von Hartmann was born in 1842, in Berlin, in which city he passed an uneventful boyhood. The school which he attended, and which like most other schools forced the pupils to master a quantity of subjects whose usefulness may be questioned, brought him into an almost open revolt against a system of education which, in nine cases out of ten, is nothing more than a pure waste of time. On leaving the gymnasium he decided, for reasons which to the average German must seem fantastic, to enter the military service at once instead of passing the usual semesters at a university. To this budding pessimist student life seemed to offer but dull variations between commonplaceness and vulgarity: to listen or not to listen to sundry poorly expressed lectures by day, to engulf at night a certain quantity of beer in stone measures, and to diversify these occupations in receiving slashes on the cheek-bone, or in affording amusement to the Hebes of Prussian restaurants, was not to him the life that was called ideal. Very wisely, then, and in accordance with the example which his father had already given, he chose in a military career a profession most apt to satisfy those inclinations of the scientist and of the artist which had already begun to exert an influence upon him.