John Marshall quotes
The powers of the legislature are defined, and limited; and that those limits may not be mistaken, or forgotten, the constitution is written. To what purpose are powers limited, and to what purpose is that limitation committed to writing, if these limits may, at any time, be passed by those intended to be restrained? The distinction, between a government with limited and unlimited powers, is abolished, if those limits do not confine the persons on whom they are imposed, and if acts prohibited and acts allowed, are of equal obligation. It is a proposition too plain to be contested, that the constitution controls any legislative act repugnant to it; or, that the legislature may alter the constitution by an ordinary act.
John Marshall
It is admitted that the power of taxing the people and their property is essential to the very existence of Government, and may be legitimately exercised on the objects to which it is applicable, to the utmost extent to which the Government may choose to carry it. The only security against the abuse of this power is found in the structure of the Government itself. In imposing a tax, the legislature acts upon its constituents. This is, in general, a sufficient security against erroneous and oppressive taxation. The people of a State, therefore, give to their Government a right of taxing themselves and their property, and as the exigencies of Government cannot be limited, they prescribe no limits to the exercise of this right, resting confidently on the interest of the legislator and on the influence of the constituent over their representative to guard them against its abuse.
John Marshall
The sword and the purse, all the external relations, and no inconsiderable portion of the industry of the nation, are entrusted to its government. It can never be pretended that these vast powers draw after them others of inferior importance, merely because they are inferior. Such an idea can never be advanced. But it may with great reason be contended, that a government, entrusted with such ample powers, on the due execution of which the happiness and prosperity of the nation so vitally depends, must also be entrusted with ample means for their execution. The power being given, it is the interest of the nation to facilitate its execution. It can never be their interest, and cannot be presumed to have been their intention, to clog and embarrass its execution by withholding the most appropriate means.
John Marshall