Quote 4
One cannot bring children into a world like this. One cannot perpetuate suffering, or increase the breed of these lustful animals, who have no lasting emotions, but only whims and vanities, eddying them now this way, now that. (4.81)
Septimus and Rezia would never have children – that would mean bringing more suffering into the world. Human beings can only be miserable, they think.
Quote 5
She could not sit beside him when he stared so and did not see her and made everything terrible; sky and tree, children playing, dragging carts, blowing whistles, falling down; all were terrible. (1.66)
Septimus’ madness ruins everything. Rezia cannot enjoy the simplest of everyday things knowing that Septimus is crazy, and getting worse.