Sulaiman Abdul Aziz Al Rajhi

My experiment in money exchange was the temptation to set up a bank. The absence of any Islamic banking was also another factor in establishing Al-Rajhi Bank, which is now the world's biggest Islamic lender by market value.

Usually, people in the Islamic world set aside one-third or one-fourth of their wealth for endowment, and that will be effective only after their death. But in my case, I decided to implement this decision in my lifetime itself.

When people said Africa would change me, I didn't understand what they meant. To see the poverty in the townships, for instance, is overwhelming. I found it heart-wrenching to see young children walking barefoot and hungry in the dirt. I'm the kind of person who wants to change the world right here and now, so I got frustrated.

The majority of small-holder farmers in Africa are women and, in urban areas, you're primarily looking at women-led households. So we can't solve hunger if we don't have gender-sensitive programming that addresses access to opportunities for women, whether it's through education or tools for cooking, like solar-powered stoves.