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.