long sojourns away from Rome, thus turning over the capital, in which
the pretorian guard remained, to the calumnies of his enemies. Of all
these enemies the most terrible was Agrippina, who, passionate,
vehement, without judgment, abused in good faith both the relationship
which protected her and the pity which her misfortune had aroused. She
allowed no occasion for taunting Tiberius with his pretended crime to
escape her, using to this end not only words, but scenes and actions,
which impressed the public even more strongly than open accusations
could have done. A supper to which Tiberius had invited her became
famous at Rome, for at it she refused obstinately and ostentatiously to
touch any food or drink whatever, to the astonishment of the guests,
who understood perfectly what her gestures meant. And such calumnies
and such affronts Tiberius answered only with a weary and disdainful
inertia; at most, when his patience was exhausted, some bitter and
concise reproof would escape him.

I have no doubt that Tiberius had resolved at the beginning to avoid
all harsh measures as far as possible; for unpopular, misunderstood,
and detested as he was, he did not dare to use violence against a large
part of the aristocracy and against his own house. Furthermore,
Agrippina was the least intelligent of the women of the family, and her
senseless opposition could be tolerated as long as Livia and Antonia,
the two really serious ladies of the family, sided with Tiberius. But
it is easy to understand that this situation could not long endure. A
power which defends itself weakly against the attacks of its enemies is
destined to sink rapidly into a decline, and the party of Agrippina
would therefore quickly have gained favor and power had there not
arisen, to sustain the vacillating strength of Tiberius, a man whose
name was to become sadly famous--Sejanus--the commander of the
pretorian guard.