"Rolling weights forward by main force of chest"
Sinners rolling weights in circle four

(Canto 7, line 27 ff)

In Dante's fourth circle of Hell, those souls guilty of the opposite sins of avariciousness and wastefulness are punished by being forced to roll weights in opposite directions. Ironically, they still scold each other for the sin opposite their own, and Dante marks them out by their respective traits of character as "with the fist closed" and "with tresses shorn".