Here is the world’s second richest man, in a fantastic interview with Mail Online:

Legacy is a stupid thing! I don’t want a legacy. If people look and see that childhood deaths dropped from nine million a year to four million because of our investment, then wow! I liken what I’m doing now to my old job. I worked with a lot of smart people; some things went well, some didn’t go so well. But when you see how what we did ended up empowering people, it’s a very cool thing.

I want a malaria vaccine. If we get one then we’ll have to find the money to give it to everyone, but the impact would be so huge we would find a way. Understanding science and pushing the boundaries of science is what makes me immensely satisfied. What I’m doing now involves understanding maths, risk-taking. The first half of my life was good preparation for the second half.

The work the Gates Foundation is doing in unbelievable. I wish more wealthy people would do this sort of thing.