There is a degree of depravity in mankind which requires a certain degree of circumspection and distrust.

In a free government the security for civil rights must be the same as that for religious rights.

... the State Legislatures will jealously and closely watch the operations of this Government, and be able to resist with more effect every assumption of power, than any other power on earth can do; and the greatest opponents to a Federal Government admit the State Legislatures to be sure guardians of the people's liberty.

The house of representatives ... can make no law, which will not have its full operation on themselves and their friends, as well as the great mass of society. This has always been deemed one of the strongest bonds by which human policy can connect the rulers and the people together. It creates between them that communion of interest, and sympathy of sentiments, of which few governments have furnished examples; but without which every government degenerates into tyranny.

[Regarding legislative assemblies,] the number ought at most to be kept within a certain limit, in order to avoid the confusion and intemperance of a multitude. In all very numerous assemblies, of whatever characters composed, passion never fails to wrest the scepter from reason. Had every Athenian citizen been a Socrates, every Athenian assembly would still have been a mob.

The important distinction so well understood in America between a constitution established by the people, and unalterable by the government; and a law established by the government, and alterable by the government, seems to have been little understood and less observed in any other country. Wherever the supreme power of legislation has resided, has been supposed to reside also, a full power to change the form of government.

On any other hypothesis, the delegation of judicial power would annul the authority delegating it; and the concurrence of this department with the others in usurped powers, might subvert forever, and beyond the possible reach of any rightful remedy, the very Constitution which all were instituted to preserve.