"There is no position which depends on clearer principles than that every act of a delegated authority, contrary to the commission under which it is exercised, is void. No legislative act, therefore, contrary to the Constitution, can be valid."

Previous Quote

The complete independence of the courts of justice is peculiarly essential in a limited Constitution. By a limited Constitution, I understand one which contains certain specified exceptions to the legislative authority. Limitations of this kind can be preserved in practice no other way than through the medium of courts of justice, whose duty it must be to declare all acts contrary to the manifest tenor of the Constitution void. Without this, all the reservations of particular rights or privileges would amount to nothing.

— Alexander Hamilton