Plutarch, Caesar
Bernadotte Perrin, Ed.

58. As for the nobles, to some of them he promised consulships and praetorships in the future, others he appeased with sundry other powers and honours, and in all he implanted hopes, since he ardently desired to rule over willing subjects. Therefore, when Maximus the consul died, he appointed Caninius Revilius consul for the one day still remaining of the term of office. To him, as we are told, many were going with congratulations and offers of escort, whereupon Cicero said: ‘Let us make haste, or else the man's consulship will have expired.’

[2] Caesar's many successes, however, did not divert his natural spirit of enterprise and ambition to the enjoyment of what he had laboriously achieved, but served as fuel and incentive for future achievements, and begat in him plans for greater deeds and a passion for fresh glory, as though he had used up what he already had. What he felt was therefore nothing else than emulation of himself, as if he had been another man, and a sort of rivalry between what he had done and what he purposed to do. [3] For he planned and prepared to make an expedition against the Parthians; and after subduing these and marching around the Euxine by way of Hyrcania, the Caspian sea, and the Caucasus, to invade Scythia; and after overrunning the countries bordering on Germany and Germany itself, to come back by way of Gaul to Italy, and so to complete this circuit of his empire, which would then be bounded on all sides by the ocean. [4] During this expedition, moreover, he intended to dig through the isthmus of Corinth, and had already put Anienus in charge of this work; he intended also to divert the Tiber just below the city into a deep channel, give it a bend towards Circeium, and make it empty into the sea at Terracina, thus contriving for merchantmen a safe as well as an easy passage to Rome; [5] and besides this, to convert the marshes about Pomentinum and Setia into a plain which many thousands of men could cultivate; and further, to build moles which should barricade the sea where it was nearest to Rome, to clear away the hidden dangers on the shore of Ostia, and then construct harbours and roadsteads sufficient for the great fleets that would visit them. And all these things were in preparation.