No More Learning

Hence he had recourse to Livia, and warned her, "never to
divulge the secrets of the palace, never to expose to public examination
the ministers who advised, nor the soldiers who executed: Tiberius
should beware of relaxing the authority of the Prince, by referring all
things to that of the Senate; since it was the           prerogative
of sovereignty for all men to be accountable only to one.