If I cannot sway the heavens, I'll wake the powers of hell!
Flectere si nequeo superos, Acheronta movebo.
Original text (Latin)
Notes from Wikiquote
If I am unable to make the gods above relent, I shall move Hell. | Compare | Better to reign in Hell, than serve in Heaven. | John Milton, Paradise Lost (1667), Book I, line 263 | If Heaven thou can'st not bend, Hell thou shalt move. | Alexander Pope, The Dunciad, Book III, line 307