“I can tell you what I believe is the secret to a happy life,” [Sandra Day O’Connor] said.

“What’s that, Justice?” I asked. … “What’s your secret?”

“Work worth doing,” she answered firmly.

“What about relationships?” I asked. …

“No,” she said. “Work worth doing, that’s all you really need.”

—The Secret to Happiness, in Three Words,
According to Justice Sandra Day O’Connor