The philosophical and mathematical commentaries of Proclus on the first book of Euclid's elements (Vol. 1 of 2) : $b To which are added, A history of the restoration of Platonic theology, by the latter Platonists: And a translation from the Greek of Proclus's Theological elements
Plato · en
But the philosopher also employed himself in civil consultations
among public assemblies, where things pertaining to the republic
were discussed; giving the most prudent counsels, conferring with
governors concerning equity, and not only exhorting them to an
impartial distribution of justice, but in a manner compelling them
by philosophical authority. For he had a certain public care of the
morals of princes, and not only instructed them in the art of temperate
government by his discourse, but also by his own example through the
whole of his life; since he was, as it were, the exemplar of temperance
to the rest. But he gave a specimen of civil fortitude perfectly
Herculean: for since at that time there was, as it were, a sea of
troubles upon him, and mighty waves of stormy employments were roused
by adverse winds against his upright life, he conducted himself, though
in danger, with gravity, and an unshaken constancy. And when he was
once very much molested by the improbity of some violent men, which
was both pernicious and dangerous to himself, he undertook a journey
into Asia, which contributed greatly to his own advantage: for as he
was not unskilful in the more ancient rites of that place, which he
yet preserved, a divine power afforded him this occasion of departure.
Hence, as he well knew the whole of their concerns, he taught them
more accurately in things pertaining to the gods, if they happened to
have neglected any thing through a long interval of time. And while
he was engaged in all these employments, and lived in a correspondent
manner, he was so concealed from the multitude that he even excelled
the Pythagoreans, who keep with unshaken constancy this precept of
their founder, λάθε βιώσας, _live concealed_. But having passed
a year only in the parts of Lydia, he returned to Athens, under the
providential protection of the presiding goddess of philosophy. And
thus fortitude was perfected in our philosopher, first by nature,
then by custom, and afterwards by science and the consideration of
causes. Besides this, he exhibited in another manner his politic habit
practically, by composing letters for noblemen; and by this means
procuring good to entire cities. But of this I have a sufficient
testimony from those on whom they were bestowed, as well Athenians as
Argives, and others of different nations.