Juvenal, Satires 10.1-6
omnibus in terris, quae sunt a Gadibus usque
Auroram et Gangen, pauci dinoscere possunt
vera bona atque illis multum diversa, remota
erroris nebula. quid enim ratione timemus
aut cupimus? quid tam dextro pede concipis ut te
conatus non paeniteat votique peracti?
In all the lands from Gades to the East and the Ganges, there are few people who can remove the mist of error and tell apart what things are truly good and what things are much their opposite. For, when accompanied by reason, what do we fear or desire? What plan do you draw up so auspiciously that you do not end up regretting the effort and the granting of your wish?