The balls are called work, family, health, friends and integrity. And you’re keeping all of them in the air. But one day, you finally come to understand that work is a rubber ball. If you drop it, it will bounce back.

The other four balls – family, health, friends, integrity – are made of glass. If you drop one of these, it will be irrevocably scuffed, nicked, perhaps even shattered.

-The One Thing, p.82