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. - John Marshall

The subject is the execution of those great powers on which the welfare of a Nation essentially depends. It must have been the intention of those who gave these powers, to insure, as far as human prudence could insure, their beneficial execution. This could not be done by confiding the choice of means to such narrow limits as not to leave it in the power of Congress to adopt any which might be appropriate, and which were conducive to the end. This provision is made in a constitution intended to endure for ages to come, and, consequently, to be adapted to the various crises of human affairs.

The acme of judicial distinction means the ability to look a lawyer straight in the eyes for two hours and not hear a damned word he says.

It is emphatically the province and duty of the Judicial Department to say what the law is.