Government must pay its debts

Allow a government to decline paying its debts and you overthrow all public morality — you unhinge all the principles that preserve the limits of free constitutions. Nothing can more affect national prosperity than a constant and systematic attention to extinguish the present debt and to avoid as much as possibly the incurring of any new debt.

The Constitution is the law of the land

No legislative act, therefore, contrary to the Constitution, can be valid. To deny this, would be to affirm, that the deputy is greater than his principal; that the servant is above his master; that the representatives of the people are superior to the people themselves; that men acting by virtue of powers, may do not only what their powers do not authorize, but what they forbid.