Simon Reuben — British Businessman

David Reuben and Simon Reuben are British businessmen and philanthropists. In the Forbes magazine List of billionaires 2013, ranking of the wealthiest people in the UK, the brothers were placed second... (wikipedia)

I can't read a computer screen and never use a calculator. It's all in my head and by hand.
If you can't make 40% on your money in Russia, you're a fool.