live to fight another day
US /lɪv tə faɪt əˈnʌðər deɪ/
UK /lɪv tə faɪt əˈnʌðər deɪ/

1.
to survive a difficult situation, even if it means retreating or postponing a conflict, so that one can continue to struggle or compete in the future
:
•
We lost the battle, but we live to fight another day.
•
Sometimes it's better to retreat and live to fight another day.