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.

We exist in this weirdly schizo culture, where sex is everywhere in the media, and yet, at the same time, you don't sit down and have a conversation about what you did in bed last night with your friends. Despite the ubiquity of sex, it's still a taboo when it comes to day-to-day conversation.

The thrill of a photo-realist painter is if you get really close to the painting, it looks just like a photograph. Whereas in my case, if you get close to my paintings, they totally fall apart - so I'm about as far from a photo-realist as it gets.

Leverage is great when it works, and when it doesn't work, it creates a lot of issues. So I think if you limit the amount of leverage that people can borrow, or that banks can borrow, I think you'll find that you'll have a lot less issues going forward.