What Chaucer's description's from the monk's tale best illustrates fortune as deceitful?

In "The Monk's Tale," Chaucer illustrates fortune as deceitful through the stories of tragic figures who rise to greatness only to fall dramatically. One poignant example is the tale of Lucifer, who was cast out of heaven despite his initial glory, showcasing how fortune can lead to pride and ultimately downfall. This theme is further emphasized in the stories of other characters who experience fleeting success, only to be met with despair and ruin, underscoring the capricious nature of fortune.