Destitutus Ventis, Remos adhibe.

When it is calm you must use your oars. If one project prove unsuccessful you must not despair, but have recourse to other means which may prove more productive. Post malam segetem serendum est, though the harvest has failed this year, you must continue your exertions in the hope you may speed better the next; worse luck now, better another time: though the Spaniards say, Contra fortuna, no vale arte ninguna, there is no use in striving against ill fortune.