is abstractedly best; so that the changes we make may be _towards_ it, and not _away_ from it. Unattainable as pure rectitude is, and will long continue to be, we must keep an eye on the compass which tells us whereabout it lies; or we shall otherwise wander in the opposite direction. Illustrations from our recent history will show very conclusively, we think, how important it is that {154} considerations of abstract expediency should be joined with those of concrete expediency—how immense would be the evils avoided and the benefits gained, if _a posteriori_ morality were enlightened by _a priori_ morality. Take first the case of free trade. Until recently it has been the practice of all nations, artificially to restrict their commerce with other nations. Throughout past centuries this course was defensible as conducing to safety. Without saying that law-givers had the motive of promoting industrial independence, it may yet be said that in ages when national quarrels were perpetual, it would not have been well for any people to be much dependent on others for necessary commodities. But though there is this ground for asserting that commercial restrictions were once expedient, it cannot be asserted that our corn-laws were thus justified: it cannot be alleged that the penalties and prohibitions which, until lately, hampered our trade, were needful to prevent us from being industrially disabled by a war. Protection in all its forms was established and maintained for other reasons of expediency; and the reasons for which it was opposed and finally abolished were also those of expediency. Calculations of immediate and remote consequences were set forth by the antagonist parties; and the mode of decision was by a balancing of these various anticipated consequences. And what, after generations of mischievous legislation and long years of arduous struggle, was the conclusion arrived at, and since justified by the results? Exactly the one which abstract equity plainly teaches. The moral course proves to be the politic course. That ability to exercise the faculties, the total denial of which causes death—that liberty to pursue the objects of desire, without which there cannot be complete life—that freedom of action which his nature prompts every individual to claim, and on which equity puts no limit save the like freedom of action of other individuals, involves, among other corollaries, freedom of exchange. {155} Government which, in protecting citizens from murder, robbery, assault or other aggression, shows us that it has the all-essential function of securing to each this free exercise of faculties within the assigned limits, is called on, in the due discharge of its function, to maintain this freedom of exchange; and cannot abrogate it without reversing its function, and becoming aggressor instead of protector. Thus, absolute morality would all along have shown in what direction legislation should tend. Qualified only by