Jove weighs affairs of earth in dubious scales,
and the good suffers while the bad prevails.
The source for the proverb is Forty Thousand Quotations: Prose and Poetical by Charles Noel Douglas (Bartleby.com); the lines of Homer are from Thomas Parnell's translation of the Odyssey (GoogleBooks). The poster is made with AutoMotivator. The image is a Zeus cameo at Wikipedia.