You don't pay back your parents. You can't. The debt you owe them gets collected by your children, who hand it down in turn. It's a sort of entailment. Or if you don't have children of the body, it's left as a debt to your common humanity. Or to your God, if you possess or are possessed by one. The family economy evades calculation in the gross planetary product. It's the only deal I know where, when you give more than you get, you aren't bankrupted - but rather, vastly enriched.
Lois McMaster BujoldMia Maz glanced aside in concern at his muffled snort. "Are you all right?" "Yes. Sorry," he whispered. "I'm just having an attack of limericks." Her eyes widened, and she bit her lip; only her deepening dimple betrayed her. "Shhh," she said, with feeling.
Lois McMaster BujoldGuard your honor. Let your reputation fall where it will. And outlive the bastards.
Lois McMaster BujoldIt was never what I wanted to buy that held my heart's hope. It was what I wanted to be.
Lois McMaster Bujold