If there is one thing failure has taught me, it is the value of regret. Regret is one of the most powerful emotional reminders that change and growth are necessary. In fact, I’ve come to believe that regret is a kind of package deal: A function of empathy, it’s a call to courage and a path toward wisdom. Like all emotions, regret can be used constructively or destructively, but the wholesale dismissal of regret is wrongheaded and dangerous. “No regrets” doesn’t mean living with courage, it means living without reflection. To live without regret is to believe you have nothing to learn, no amends to make, and no opportunity to be braver with your life.
— Brené Brown, Rising Strong, p. 210-211.