One of those curious pamphlets, or _brochures_, as they call them, which the French political writers make the frequent medium of their discussions, was lately published at Paris, under the title of 'France, Mexico, and the Confederate States.' It is less a discussion of the Mexican question than an adroit appeal, under cover of it, in behalf of the Southern confederacy. It addresses itself to the enthusiastic temperament of Frenchmen, with the specious sophism, underlying its argument, that the South is fighting for _ideas_, the North for _power_. This is a sophism largely current abroad, and not without its dupes even at home. The purpose of this paper is to expose the nakedness of it. Fighting for ideas may be a very sublime thing, and it may likewise be a very ridiculous thing. The valorous knight of La Mancha set forth to fight for ideas, and he began to wage war with windmills. He fought for ideas, indeed, but his distempered imagination quite overlooked the fact that they were ideas long since dead, beyond hope of resurrection. And it is but the statement of palpable truth to declare that whatever ideas the South is fighting for now, are of a like obsolete character. The glory of feudalism, as a system of society, is departed; and its attendant glories of knight-errantry and human slavery are departed with it. Don Quixote thought to reestablish the one, and the South deludes itself with the hope of reestablishing the other. Times and ideas have changed since the days of feudalism, and the South only repeats in behalf of slavery the tragic farce of Don Quixote in behalf of knight-errantry. Both alike would roll back the centuries of modern civilization, and, reversing the dreams of Plato and Sir Thomas More, would hope to find a Utopia in the dark ages of the past. We do not ridicule, much less deny the power of ideas. On the contrary, we believe heartily in ideas, and in men of ideas. We accept ideas as forces of civilization, and we would magnify their office as teachers and helpers of man, in his poor strivings after good. Man is ever repeating the despondent cry of the Psalmist, 'Who will show us any good?' It is the mission of ideas, the ministering angels of civilization, to lift him into a realm of glorious communion with good and spiritual things, and so inspire him to heroic effort in his work. Nevertheless, while thus willing to glorify the office of ideas, we hold them to be of less worth than institutions. That is, ideas, of themselves, are of little practical value. An idea, disjoined from an institution, is spirit without body; just as an institution that does not embody a noble idea, is body without spirit. An idea, to be effective, must be organized; an institution, to be effective, must have breathed into it the breath of life, must be vivified with an idea. It is only thus, in and through institutions, that ideas can exert their proper influence upon society.