The true test is, whether the object be of a local character, and local use; or, whether it be of general benefit to the states. If it be purely local, congress cannot constitutionally appropriate money for the object. But, if the benefit be general, it matters not, whether in point of locality it be in one state, or several; whether it be of large, or of small extent.

Temporary delusions, prejudices, excitements, and objects have irresistible influence in mere questions of policy. And the policy of one age may ill suit the wishes or the policy of another. The constitution is not subject to such fluctuations. It is to have a fixed, uniform, permanent construction. It should be, so far at least as human infirmity will allow, not dependent upon the passions or parties of particular times, but the same yesterday, to-day, and for ever.

The duty imposed upon him [the president] to take care that the laws be faithfully executed, follows out the strong injunctions of his oath of office, that he will 'preserve, protect, and defend the Constitution.' The great object of the executive department is to accomplish this purpose; and without it, be the form of government whatever it may, it will be utterly worthless for offence or defense; for the redress of grievances or the protection of rights; for the happiness, or good order, or safety of the people.

Constitutions are not designed for metaphysical or logical subtleties, for niceties of expression, for critical propriety, for elaborate shades of meaning, or for the exercise of philosophical acuteness or judicial research. They are instruments of a practical nature, founded on the common business of human life, adapted to common wants, designed for common use, and fitted for common understandings.

The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.

If the Constitution is a compact, then the States have a right to secede.

It was under a solemn consciousness of the dangers from ecclesiastical ambition, the bigotry of spiritual pride, and the intolerance of sects... that is was deemed advisable to exclude from the national government all power to act upon the subject.