There’s something really powerful about groups and shared experiences. People might be skeptical about their ability to change if they’re by themselves, but a group will convince them to suspend disbelief. A community creates belief.

The Golden Rule of Habit Change: You can't extinguish a bad habit, you can only change it.

There’s something about it that makes other good habits easier.

As people strengthened their willpower muscles in one part of their lives—in the gym, or a money management program—that strength spilled over into what they ate or how hard they worked. Once willpower became stronger, it touched everything.

Simply giving employees a sense of agency- a feeling that they are in control, that they have genuine decision-making authority - can radically increase how much energy and focus they bring to their jobs.

Research suggests that investment bankers are more prone to commit fraud when they feel the competitor at their heels.

I think I'm smart, and I know I was a good mom. But there wasn't a lot I could point to and say, that's why I'm special.