In temerarios.

The reckless

Aspicis aurigam currus Phaëthonta[1] paterni
Ignivomos ausum flectere Solis equos?
Maxima qui postquàm terris incendia sparsit,
Est temerè insesso lapsus ab axe miser.
Sic plerique rotis fortunae ad sidera Reges
Evecti, ambitio quos iuvenilis agit;
Post magnam humani generis cladémque suámque,
Cunctorum poenas denique dant scelerum.

You see here Phaethon, driving his father's chariot, and daring to guide the fire-breathing steeds of the Sun. After spreading great conflagrations over the earth, the wretched boy fell from the car he had so rashly mounted. - Even so, the majority of kings are borne up to heaven on the wheels of Fortune, driven by youth's ambition. After they have brought great disaster on the human race and themselves, they finally pay the penalty for all their crimes.

PHaëthontis casus in eos principes traducitur, qui
recta mente consilióque destituti, & audacia iu-
venili exsultantes, multis variisque difficultatibus
sese implicant, adeò ut post labores inexhaustos tan-
dem se & suos in praecipitium miserè coniiciant.
Ferè sit enim ut principes illi fatui & excordes, eo
quod habent in alios imperii & potentiae pro sua
libidine abutantur, & quasi prodigant in publicae
rei summam perniciem.