The laws of Congress are restricted to a certain sphere, and when they depart from this sphere, they are no longer supreme or binding.

Men are rather reasoning than reasonable animals for the most part governed by the impulse of passion. This is a truth well understood by our adversaries who have practised upon it with no small benefit to their cause. For at the very moment they are eulogizing the reason of men & professing to appeal only to that faculty, they are courting the strongest & most active passion of the human heart - VANITY!

If it be asked what is to restrain the House of Representatives from making legal discriminations in favor of themselves and a particular class of the society? I answer, the genius of the whole system, the nature of just and constitutional laws, and above all the vigilant and manly spirit which actuates the people of America, a spirit which nourishes freedom, and in return is nourished by it. If this spirit shall ever be so far debased as to tolerate a law not obligatory on the Legislature as well as on the people, the people will be prepared to tolerate anything but liberty.

[T]he Constitution ought to be the standard of construction for the laws, and that wherever there is an evident opposition, the laws ought to give place to the Constitution. But this doctrine is not deducible from any circumstance peculiar to the plan of convention, but from the general theory of a limited Constitution.

What is the most sacred duty and the greatest source of our security in a Republic? An inviolable respect for the Constitution and Laws.

In the main it will be found that a power over a man's support [salary] is a power over his will.

Though a wide ocean separates the United States from Europe, yet there are various considerations that warn us against an excess of confidence or security.