Virgil, Aeneid VI.376
Melphi speaks
Desine fata deum flecti sperare precando.
The priest translates
«Stop hoping that the decrees of the gods can be bent by praying.»
And interprets
This answer is blunt, but it is not cruel. It tells you that something will not change, however much you insist: a decision already made by someone else, a closed situation, a plain fact. Going on begging, brooding, hoping for a change of heart keeps you stuck on the shore. Be careful, though, to read the line to the end: right after it, the Sibyl comforts Palinurus with a promise. When you stop asking for the impossible, room opens up for what is possible, and it is often more than you thought. Accepting does not mean giving up: it means no longer wasting strength where there is no way through.
The historical translations
Annibal Caro (1581)
Senza comiato? Indarno indarno speri
Che per nostro pregar fato si cangi.
Senza comiato? Indarno indarno speri
Che per nostro pregar fato si cangi.
Theodore C. Williams (1910)
Hope not by prayer to change the laws of Heaven!
Hope not by prayer to change the laws of Heaven!
Source
Publius Vergilius Maro, Aeneis, ed. J. B. Greenough (1900)
Virgil, Aeneid VI.376