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.

To listen well is as powerful a means of communication and influence as to talk well

A corporation is an artificial being, invisible, intangible, and existing only in contemplation of law.

State inspection laws, health laws, and laws for regulating the internal commerce of a State, and those which respect turnpike roads, ferries, &c. are not within the power granted to Congress. ... Inspection laws, quarantine laws, health laws of every description, as well as laws for regulating the internal commerce of a State, and those which respect turnpike roads, ferries, &c., are component parts of this mass. No direct general power over these objects is granted to Congress, and, consequently, they remain subject to State legislation.

The power to tax is the power to destroy.

What is it that makes us trust our judges? Their independence in office and manner of appointment.

Certainly all those who have framed written constitutions contemplate them as forming the fundamental and paramount law of the nation, and consequently the theory of every such government must be, that an act of the legislature, repugnant to the constitution, is void.