An unlimited power to tax involves, necessarily, a power to destroy - John Marshall

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.

In America, the powers of sovereignty are divided between the Government of the Union and those of the States. They are each sovereign with respect to the objects committed to it, and neither sovereign with respect to the objects committed to the other. We cannot comprehend that train of reasoning, which would maintain that the extent of power granted by the people is to be ascertained not by the nature and terms of the grant, but by its date. Some State Constitutions were formed before, some since, that of the United States. We cannot believe that their relation to each other is in any degree dependent upon this circumstance. Their respective powers must, we think, be precisely the same as if they had been formed at the same time. Had they been formed at the same time, and had the people conferred on the General Government the power contained in the Constitution, and on the States the whole residuum of power, would it have been asserted that the Government of the Union was not sovereign, with respect to those objects which were intrusted to it, in relation to which its laws were declared to be supreme? If this could not have been asserted, we cannot well comprehend the process of reasoning which maintains that a power appertaining to sovereignty cannot be connected with that vast portion of it which is granted to the General Government, so far as it is calculated to subserve the legitimate objects of that Government.

The power to tax involves the power to destroy.