Define 'Hubris'.

Excessive pride or self-confidence : (in Greek tragedy) excessive pride towards or defiance of the gods, leading to nemesis?

Define 'Nemesis'.

The inescapable agent of someone's or something's downfall : A long-standing rival; an arch-enemy : A downfall caused by an inescapable agent : Retributive justice,‘Nemesis is notoriously slow’?