1 I. My dear son Marcus, you have now been studying a full year under Cratippus, and that too in Athens, and you should be fully equipped with the practical precepts and the principles of philosophy; so much at least one might expect from the pre-eminence not only of your teacher but also of the city; the former is able to enrich you with learning, the latter to supply you with models. Nevertheless, just as I for my own improvement have always combined Greek and Latin studies—and I have done this not only in the study of philosophy but also in the practice of oratory—so I recommend that you should do the same, so that you may have equal command of both languages. And it is in this very direction that I have, if I mistake not, rendered a great service to our countrymen, so that not only those who are unacquainted with Greek literature but even the cultured consider that they have gained much both in oratorical power and in mental training.
Greek Philosophy and Cicero's own.
2 You will, therefore, learn from the foremost of present-day philosophers, and you will go on learning as long as you wish; and your wish ought to continue as long as you are not dissatisfied with the progress you are making. For all that, if you will read my philosophical books, you will be helped; my philosophy is not very different from that of the Peripatetics (for both they and I claim to be followers of Socrates and Plato). As to the conclusions you may reach, I leave that to your own judgment (for I would put no hindrance in your way), but by reading my philosophical writings you will be sure to render your mastery of the Latin language more complete. But I would by no means have you think that this is said boastfully. For there are many to whom I yield precedence in knowledge of philosophy; but if I lay claim to the orator's peculiar ability to speak with propriety, clearness, elegance, I think my claim is in a measure justified, for I have spent my life in that profession.
Philosophy and oratory.
3 And therefore, my dear Cicero, I cordially recommend you to read carefully not only my orations but also these[A] books of mine on philosophy, which are now about as extensive. For while the orations exhibit a more vigorous style, yet the unimpassioned, restrained style of my philosophical productions is also worth cultivating. Moreover, for the same man to succeed in both departments, both in the forensic style and in that of calm philosophic discussion has not, I observe, been the good fortune of any one of the Greeks so far, unless, perhaps, Demetrius of Phalerum can be reckoned in that number—a clever reasoner, indeed, and, though rather a spiritless orator, he is yet charming, so that you can recognize in him the disciple of Theophrastus. But let others judge how much I have accomplished in each pursuit; I have at least attempted both.
4 I believe, of course, that if Plato had been willing to devote himself to forensic oratory, he could have spoken with the greatest eloquence and power; and that if Demosthenes had continued the studies he pursued with Plato and had wished to expound his views, he could have done so with elegance and brilliancy. I feel the same way about Aristotle and Isocrates, each of whom, engrossed in his own profession, undervalued that of the other.
II. Sed cum statuissem scribere ad te aliquid hoc tempore, multa posthac, ab eo ordiri maxime volui, quod et aetati tuae esset aptissimum et auctoritati meae. Nam cum multa sint in philosophia et gravia et utilia accurate copioseque a philosophis disputata, latissime patere videntur ea, quae de officiis tradita ab illis et praecepta sunt. Nulla enim vitae pars neque publicis neque privatis neque forensibus neque domesticis in rebus, neque si tecum agas quid, neque si cum altero contrahas, vacare officio potest, in eoque et colendo sita vitae est honestas omnis et neglegendo[4] turpitudo.
5 Atque haec quidem quaestio communis est omnium philosophorum; quis est enim, qui nullis officii praeceptis tradendis philosophum se audeat dicere? Sed sunt non nullae disciplinae, quae propositis bonorum et malorum finibus officium omne pervertant. Nam qui summum bonum sic instituit, ut nihil habeat cum virtute coniunctum, idque suis commodis, non honestate metitur, hic, si sibi ipse consentiat et non interdum naturae bonitate vincatur neque amicitiam colere possit nec iustitiam nec liberalitatem; fortis vero dolorem summum malum iudicans aut temperans voluptatem summum bonum statuens esse certe nullo modo potest.
de Fin. II, 12 ff.; Tusc. Disp. IV-V; de Off. [III, 117]
6 Quae quamquam ita sunt in promptu, ut res disputatione non egeat, tamen sunt a nobis alio loco disputata. Hae disciplinae igitur si sibi consentaneae velint esse, de officio nihil queant dicere, neque ulla officii praecepta firma, stabilia, coniuncta naturae tradi possunt nisi aut ab iis, qui solam, aut ab iis, qui maxime honestatem propter se dicant expetendam. Ita propria est ea praeceptio Stoicorum, Academicorum, Peripateticorum, quoniam Aristonis, Pyrrhonis, Erilli iam pridem explosa sententia est; qui tamen haberent ius suum disputandi de officio, si rerum aliquem dilectum[5] reliquissent, ut ad officii inventionem aditus esset. Sequemur[6] igitur hoc quidem tempore et hac in quaestione potissimum Stoicos non ut interpretes, sed, ut solemus, e fontibus eorum iudicio arbitrioque nostro, quantum quoque modo videbitur, hauriemus.