No one imagines that a law professing to tax will be permitted to destroy.

The constitution is either a superior paramount law, unchangeable by ordinary means, or it is on a level with ordinary legislative acts, alterable when the legislature shall please to alter it. It is emphatically the province and duty of the judicial department to say what the law is. This is the very essence of judicial duty.

Have no power, by taxation or otherwise, to retard, impede, burden or in any manner control the operations of the constitutional laws enacted by Congress.

The law does not expect a man to be prepared to defend every act of his life which may be suddenly and without notice alleged against him.

It is emphatically the province and duty of the judicial department to say what the law is...If two laws conflict with each other, the courts must decide on the operation of each...This is of the very essence of judicial duty.

Between a balanced republic and a democracy, the difference is like that between order and chaos.

The power to tax involves the power to destroy;...the power to destroy may defeat and render useless the power to create.