Nihil est periculosius in hominibus mutata subito fortuna.
Nothing is more dangerous to men than a sudden change of fortune.
We should not write so that it is possible for [the reader] to understand us, but so that it is impossible for him to misunderstand us.Quintilian
Nam in omnibus fere minus valent præcepta quam experimenta.Quintilian
Qui stultis videri eruditi volunt, stulti eruditis videntur.Quintilian