Business Insider presents quotes from 22 executives admitting the biggest mistakes they have ever made. This one is from Carol Bartz, former president and CEO of Yahoo:

"I've made a lot of mistakes. There isn't one that stands out. I make mistakes every week, every month, every year.

"I would say. . . I actually wish I had started having children younger. I was 40 when I had my daughter. And I wish I would have started that younger so I could have had more children."

From an interview with the Tech Museum -- where she also has a comment on the idea of work-life balance. Thanks to Bryan Bradley for this tip.