ἀνάγκᾳ δ' οὐδὲ θεοὶ μάχονται → but not even gods fight necessity (Simonides, fr. 37.1.29)
adv.
Calmly: P. and V. ἡσυχῆ, ἡσύχως (rare P.), Ar. and V. ἀτρέμα (rare P.), Ar. and P. ἀτρέμας.
Peacefully, without care: P. and V. ἀπραγμόνως (Eur., Frag.).