For CEOs today, it's all about acheieving growth and efficiency through innovation. It's not about product innovation so much anymore as about innovating business models. process, culture and management.

To me, I learned along the way, you know, culture is behavior. That's all it is; culture is people's behaviors.

Don't let others define you. Define yourself.

I always say, you know, if I sit here and close my eyes and say, 'When did I learn the most in my life, in my career?' It'll always be when I close them and everything I think of is when I took a risk. It's when I think I learned the most.

One of the most important things for any leader is to never let anyone else define who you are. And you define who you are. I never think of myself as being a woman CEO of this company. I think of myself as a steward of a great institution.

I learned to always take on things I'd never done before. Growth and comfort do not coexist.

Every day I get to 'Think' and work on everything from digitizing electric grids so they can accommodate renewable energy and enable mass adoption of electric cars, helping major cities reduce congestion and pollution, to developing new micro-finance programs that help tiny businesses get started in markets such as Brazil, India, Africa.