Let the end be legitimate, let it be within the scope of the constitution, and all means which are appropriate, which are plainly adapted to that end, which are not prohibited, but consist with the letter and spirit of the constitution, are constitutional.

To obtain a just compromise, concession must not only mutual-it must be equal also....There can be no hope that either will yield more than it gets in return.

The peculiar circumstances of the moment may render a measure more or less wise, but cannot render it more or less constitutional.

The people made the Constitution, and the people can unmake it. It is the creature of their own will, and lives only by their will.

A legislative act contrary to the Constitution is not law.

No principle of general law is more universally acknowledged, than the perfect equality of nations. Russia and Geneva have equal rights. It results from this equality, that no one can rightfully impose a rule on another....As no nation can prescribe a rule for others, none can make a law of nations.

The federal government is acknowledged by all to be one of enumerated powers. The principle, that it can exercise only the powers granted to it . . . is now universally admitted.