Mary Barra

The biggest message I have for young women is, Don't start cutting off branches of your career tree unnecessarily early. Sometimes women say, I know I want to have a family or play in the local symphony, and they start pulling themselves out of their career path. You don't have to take yourself out of the running before you even start.

It's a marathon, not a sprint. I actually feel like I come to work stronger when I've had a little time on the weekend to step away from it and enjoy my family and other things. I come back energized. If people think they're going to work 24/7, week in and week out, they're not bringing their full strength to the table.

I'm a big believer of work/life balance. You need a little down time to recharge to make sure that when you're here, you're really all here. I still have a child in high school, so I go to her sporting events, even if it means leaving work and working again when I get home. I probably should work out a little more than I do.

I know we're all addicted to our smartphones, and I'll say, if I forget my smartphone, I go home and get it. And so understanding how to integrate that technology into the driving experience, both the front seat and the passenger seat and the back seat, I think is very important.