THE TRIBUNATE  
When an exact proportion cannot be established between the constituent parts of the State, or when causes that cannot be removed continually alter the relation of one part to another, recourse is had to the institution of a peculiar magistracy that enters into no corporate unity with the rest. This restores to each term its right relation to the others, and provides a link or middle term between either prince and people, or prince and Sovereign, or, if necessary, both at once.
This body, which I shall call the tribunate, is the preserver of the laws and of the legislative power. It serves sometimes to protect the Sovereign against the government, as the tribunes of the people did at Rome; sometimes to uphold the government against the people, as the Council of Ten now does at Venice; and sometimes to maintain the balance between the two, as the Ephors did at Sparta.
The tribunate is not a constituent part of the city, and should have no share in either legislative or executive power; but this very fact makes its own power the greater: for, while it can do nothing, it can prevent anything from being done. It is more sacred and more revered, as the defender of the laws, than the prince who executes them, or than the Sovereign which ordains them. This was seen very clearly at Rome, when the proud patricians, for all their scorn of the people, were forced to bow before one of its officers, who had neither auspices nor jurisdiction.
The tribunate, wisely tempered, is the strongest support a good constitution can have; but if its strength is ever so little excessive, it upsets the whole State. Weakness, on the other hand, is not natural to it: provided it is something, it is never less than it should be.
It degenerates into tyranny when it usurps the executive power, which it should confine itself to restraining, and when it tries to dispense with the laws, which it should confine itse............