Fertile as the Ciceronian age was in authorship of many kinds, there was only one person in it whose claim to be placed in an equal rank with Cicero could ever be seriously entertained; and this was, strangely enough, one who was as it were only a man of letters by accident, and whose literary work is but among the least of his titles to fame—Julius Caesar himself. That anything written by that remarkable man must be interesting and valuable in a high degree is obvious; but the combination of literary power of the very first order with his unparallelled military and political genius is perhaps unique in history.
It is one of the most regrettable losses in Latin literature that Caesar's speeches and letters have almost completely perished. Of the latter several collections were made after his death, and were extant in the second century; but none are now preserved, except a few brief notes to Cicero, of which copies were sent by him at the time to Atticus. The fragments of his speeches are even less considerable; yet, according to the unanimous testimony both of contemporary and of later critics, they were unexcelled in that age of great oratory. He used the Latin language with a purity and distinction that no one else could equal. And along with this quality, the mira elegantia of Quintilian, his oratory had some kind of severe magnificence which we can partly guess at from his extant writings—magnifica et generosa, says Cicero; facultas dicendi imperatoria is the phrase of a later and able critic.
Of Caesar's other lost writings little need be said. In youth, like most of his contemporaries, he wrote poems, including a tragedy, of which Tacitus drily observes that they were not better than those of Cicero. A grammatical treatise, De Analogia, was composed by him during one of his long journeys between Northern Italy and the headquarters of his army in Gaul during his proconsulate. A work on astronomy, apparently written in connection with his reform of the calendar, two pamphlets attacking Cato, and a collection of apophthegms, have also disappeared. But we possess what were by far the most important of his writings, his famous memoirs of the Gallic and Civil Wars.
The seven books of Commentaries on the Gallic War were written in Caesar's winter quarters in Gaul, after the capture of Alesia and the final suppression of the Arvernian revolt. They were primarily intended to serve an immediate political purpose, and are indeed a defence, framed with the most consummate skill, of the author's whole Gallic policy and of his constitutional position. That Caesar was able to do this without, so far as can be judged, violating, or even to any large degree suppressing facts, does equal credit to the clear-sightedness of his policy and to his extraordinary literary power. From first to last there is not a word either of self-laudation or of innuendo; yet at the end we find that, by the use of the simplest and most lucid narration, in which hardly a fact or a detail can be controverted, Caesar has cleared his motives and justified his conduct with a success the more complete because his tone is so temperate and seemingly so impartial. An officer of his staff who was with him during that winter, and who afterwards added an eighth book to the Commentaries to complete the history of the Gallic proconsulate, has recorded the ease and swiftness with which the work was written. Caesar issued it under the unpretending name of Commentarii —“notes”—on the events of his campaigns, which might be useful as materials for history; but there was no exaggeration in the splendid compliment paid it a few years later by Cicero, that no one in his senses would think of recasting a work whose succinct, perspicuous, and brilliant style—pura et inlustris brevitas—has been the model and the despair of later historians.