Although the motives which have influenced me in this matter may be already sufficiently stated, I am, never the less, induced by its importance to add a few observations of a general character.

In my objections to the bills authorizing subscriptions to the Maysville and Rockville road companies I expressed my views fully in regard to the power of Congress to construct roads and canals within a State of to appropriate money for improvements of a local character. I at the same time intimated me belief that the right to make appropriations for such as were of a national character had been so generally acted upon and so long acquiesced in by the Federal and State Governments and the constituents of each as to justify its exercise on the ground of continued and uninterrupted usage, but that it was, never the less, highly expedient that appropriations even of that character should, with the exception made at the time, be deferred until the national debt is paid, and that in the mean while some general rule for the action of the Government in that respect ought to be established.

These suggestions were not necessary to the decision of the question then before me, and were, I readily admit, intended to awake the attention and draw forth the opinion and observations of our constituents upon a subject of the highest importance to their interests, and one destined to exert a powerful influence upon the future operations of our political system. I know of no tribunal to which a public man in this country, in a case of doubt and difficulty, can appeal with greater advantage or more propriety than the judgment of the people; and although I must necessarily in the discharge of my official duties be governed by the dictates of my own judgment, I have no desire to conceal my anxious wish to conform as far as I can to the views of those for whom I act.

All irregular expressions of public opinion are of necessity attended with some doubt as to their accuracy, but making full allowances on that account I can not, I think, deceive myself in believing that the acts referred to, as well as the suggestions which I allowed myself to make in relation to their bearing upon the future operations of the Government, have been approved by the great body of the people. That those whose immediate pecuniary interests are to be affected by proposed expenditures should shrink from the application of a rule which prefers their more general and remote interests to those which are personal and immediate is to be expected. But even such objections must from the nature of our population be but temporary in their duration, and if it were otherwise our course should be the same, for the time is yet, I hope, far distant when those intrusted with power to be exercised for the good of the whole will consider it either honest or wise to purchase local favors at the sacrifice of principle and general good.

So understanding public sentiment, and thoroughly satisfied that the best interests of our common country imperiously require that the course which I have recommended in this regard should be adopted, I have, upon the most mature consideration, determined to pursue it.

It is due to candor, as well as to my own feelings, that I should express the reluctance and anxiety which I must at all times experience in exercising the undoubted right of the Executive to withhold his assent from bills on other grounds than their constitutionality. That this right should not be exercised on slight occasions all will admit. It is only in matters of deep interest, when the principle involved may be justly regarded as next in importance to infractions of the Constitution itself, that such a step can be expected to meet with the approbation of the people. Such an occasion do I conscientiously believe the present to be.

In the discharge of this delicate and highly responsible duty I am sustained by the reflection that the exercise of this power has been deemed consistent with the obligation of official duty by several of my predecessors, and by the persuasion, too, that what ever liberal institutions may have to fear from the encroachments of Executive power, which has been every where the cause of so much strife and bloody contention, but little danger is to be apprehended from a precedent by which that authority denies to itself the exercise of powers that bring in their train influence and patronage of great extent, and thus excludes the operation of personal interests, every where the bane of official trust.

I derive, too, no small degree of satisfaction from the reflection that if I have mistaken the interests and wishes of the people the Constitution affords the means of soon redressing the error by selecting for the place their favor has bestowed upon me a citizen whose opinions may accord with their own. I trust, in the mean time, the interests of the nation will be saved from prejudice by a rigid application of that portion of the public funds which might otherwise be applied to different objects to that highest of all our obligations, the payment of the public debt, and an opportunity be afforded for the adoption of some better rule for the operations of the Government in this matter than any which has hitherto been acted upon.

Profoundly impressed with the importance of the subject, not merely as relates to the general prosperity of the country, but to the safety of the federal system, I can not avoid repeating my earnest hope that all good citizens who take a proper interest in the success and harmony of our admirable political institutions, and who are incapable of desiring to convert an opposite state of things into means for the gratification of personal ambition, will, laying aside minor considerations and discarding local prejudices, unite their honest exertions to establish some fixed general principle which shall be calculated to effect the greatest extent of public good in regard to the subject of internal improvement, and afford the least ground for sectional discontent.

The general grounds of my objection to local appropriations have been heretofore expressed, and I shall endeavor to avoid a repetition of what has been already urged--the importance of sustaining the State sovereignties as far as is consistent with the rightful action of the Federal Government, and of preserving the greatest attainable harmony between them. I will now only add an expression of my conviction--a conviction which every day's experience serves to confirm--that the political creed which inculcates the pursuit of those great objects as a paramount duty is the true faith, and one to which we are mainly indebted for the present success of the entire system, and to which we must alone look for its future stability.