Is there a Legislative power in fact, not expressly prohibited by the Constitution, which might not, according to the doctrine of the Court, be exercised as a means of carrying into effect some specified Power?

A well-instructed people alone can be permanently a free people.

The ultimate authority resides in the people, and that if the federal government got too powerful and overstepped its authority, then the people would develop plans of resistance and resort to arms.

I go by the great republican principle, that the people will have the virtue and intelligence to select men of virtue and wisdom [to the offices of government].

The problem to be solved is, not what form of government is perfect, but which of the forms is least imperfect.

The rights of man as the foundation of just Government had been long understood but the superstructures projected had been sadly defective

In the extent and proper structure of the Union, therefore, we behold a republican remedy for the disease incident to republican government.