Cras amet qui numquam amavit quique amavit cras amet → May he love tomorrow who has never loved before; And may he who has loved, love tomorrow as well.
failing this: P. and V. εἰ δὲ μή.
Best of all, let us make terms for ever. Failing that…: P. μάλιστα μὲν εἰς ἀΐδιον συμβῶμεν, εἰ δὲ μὴ… (Thuc. 4, 63).
