Sperat infestis, metuit secundis
alteram sortem bene praeparatum
pectus. informes hiemes reducit
Iuppiter, idem
submovet. non, si male nunc, et olim
sic erit: quondam cithara tacentem
suscitat Musam neque semper arcum
tendit Apollo.
rebus angustis animosus atque
fortis appare; sapienter idem
contrahes vento nimium secundo
turgida vela.
(Horace, Carm. 2.10.13-24)
In adversity the well-prepared mind hopes for the opposite situation, is on guard against it in prosperity. Jupiter brings round the ugly winters; he also removes them. If things are bad now, they will not always be so: at times Apollo wakens the slumbering Muse with his lyre; he does not always keep his bow taut. In dire straits show yourself spirited and brave; you will also be wise to shorten your sail when it swells before too favourable a breeze. (tr. Niall Rudd)
Crambe Repetita 