Vesper

Haec Graeco sermone Perseo; Latine deinde suis “exemplum insigne cernitis” inquit “mutationis rerum humanarum. vobis hoc praecipue dico, iuvenes. ideo in secundis rebus nihil in quemquam superbe ac violenter consulere decet nec praesenti credere fortunae, cum quid vesper ferat incertum sit. is demum vir erit, cuius animum neque prosperae res flatu suo efferent nec adversae infringent.”
(Livy 45.8.6)

This the consul said in Greek to Perseus; then he continued in Latin to his staff: “You see before you a notable example of the changefulness of human affairs. I say this especially for you, young men. Therefore, it is proper to offer no insult or violence to anyone, while one is in favourable circumstances, and not to trust to one’s present fortune, since no one knows what evening will bring. He will be truly a man, in a word, whose spirit is neither deflected from its course by the breath of prosperity, nor broken by misfortune.” (tr. Alfred C. Schlesinger)