I reproduce the first paragraph of the first chapter here in its entirety:
Igitur nato filio pater spem de illo primum quam optimam capiat: ita diligentior a principiis fiet. Falsa enim est querela, paucissimis hominibus vim percipiendi quae tradantur esse concessam, plerosque vero laborem ac tempora tarditate ingenii perdere. Nam contra plures reperias et faciles in excogitando et ad discendum promptos. Quippe id est homini naturale, ac sicut aves ad volatum, equi ad cursum, ad saevitiam ferae gignuntur, ita nobis propria est mentis agitando atque sollertia: unde origo animi caelestis creditur. Hebetes vero et indociles non magis secundum naturam hominis eduntur quam prodigiosa corpora et monstris insignia (sed hi pauci admodum fuerunt). Argumentum, quod in pueris elucet spes plurimorum: quae cum emorietur aetate, manifestum est non naturam defescisse sed curam. 'Praestat tamen ingenio alius alium.' Concedo; sed plus efficiet aut minus: nemo reperitur qui sit studio nihil consecutus Hoc qui perviderit, protinus ut erit parens factus, acrem quam maxime datur curam spei futuri oratoris inpendat.
Roughly in English:
"As soon as his son is born, then, a father should take up the highest possible expectation concerning him: thus the father will be more diligent about his son from the beginning. For it is a false complaint that the power of understanding all that is taught to them is granted to only the smallest number of human beings, and that most by their slowness of wit truly waste the time and trouble spent teaching them. For on the contrary, you would find many more are easy in their reasoning and prompt in their learning. Indeed, this is natural to a human being, just as birds are to flying, horses to running, and wild beasts to ferocity, so for us the exercise of the mind and resourcefulness: thus the origin of the human soul is believed to be divine. Truly, the dull and unteachable are no more natural products of human nature than are prodigious bodies and those marked as monsters (but these have always been few). The proof, that the hope of many achievements shines forth in children: and when it dies away with age, this is manifestly the failure not of nature but of care. 'But one displays more inborn talent than another!" I concede this; but while one will achieve more or less, no one is found who achieves nothing by their efforts. The parent who entirely understands this, then, must give the matter the keenest possible attention as soon as they become a parent, that they foster the promise of the future orator [and as I remarked above, for "orator" I feel one can simply read "informed and active citizen" for purposes of our common understanding]."