“Cats do not enjoy being reminded of debts.Cats don not incur in debts.”

“We owe God a "double debt" incurred by our passive receipt of Adam's debt but also by our active disobedience. The extent of our depravity is such that we also owe a "daring debt" because we challenge not only God's Law but His very grace as we blame Him that He has not done enough.”

“Cat rescue is like a virus," says Des placidely about the cat obsession that has taken over his life. "And once you're infected, it's incurable.”

“...no cat out of its first fur can ever be deceived by appearances. Unlike human beings, who enjoy them.”

“Which reminded me...I still owed the gods a debt."You're a genius," I (Percy) told Annabeth.”

“The debt we owe our parents can never be squared, and jolly good too, because doing so would threaten to nullify all relationship, all emotional commerce between the two generations. Being in debt, just like being in credit, means an active interest applies between the two parties and, once the debt is taken care of, the interest is bound to wane.”