Iliad 14.80–81
Agamemnon to the wounded Achaean leaders
οὐ γάρ τις νέμεσις φυγέειν κακόν, οὐδʼ ἀνὰ νύκτα.
βέλτερον ὃς φεύγων προφύγῃ κακὸν ἠὲ ἁλώῃ.
There is no shame in fleeing disaster, even by night.
Better that a man escape disaster by flight than be caught.