Never take your eye off the ball. Always remember that you and everyone on the team is the servant of the cause - in our case, girls' education and young women's leadership in Africa.

For the poor, learning to manage money well is central to improving their lives.

For more than 20 years, Camfed has supported a generation of African girls and women with access to secondary and higher education, employment opportunities, and, ultimately, into positions of leadership.

When I first worked in Zimbabwe, I was a complete novice. I was doing a study, and I continued to learn more and more through the years. And where I have learned most is in the village, from the communities.

In all honesty, I grew up a certain way. I never had to worry about money... that was my reality.

I'm making better than two million a year, but it's hard work. The luxuries and pleasures I enjoy in my spare time keep me in condition to do that work. Carnegie and Frick have more money than I have, but I'm getting more value for my dollars than they are.

Digital currencies present a chance for money to truly become information, and for the creation of a global financial system that is truly frictionless, open, and uncensored - the vision we once had for the Internet.

Growth is what solves most of the big economic and social problems: poverty, government deficits, quality of life, rising healthcare and retirement costs.