When you're first thinking through an idea, it's important not to get bogged down in complexity. Thinking simply and clearly is hard to do.

We must rapidly wean ourselves off our dependence on coal and fossil fuels.

Lead by listening - to be a good leader you have to be a great listener.

I believe in benevolent dictatorship provided I am the dictator.

It isn't effective or productive to force your employees to do anything. Choice empowers people and makes for a more content workforce.

I have always lived my life by thriving on opportunity and adventure. Some of the best ideas come out of the blue, and you have to keep an open mind to see their virtue.

I've been in Africa, and I've been to hospitals of Africa, and they're not hospitals, they're places where people go to die. And rows and rows and rows of people just dying and the waiting rooms of the hospitals are full of people waiting to get into the beds of the people who died the night before, and they're dying from unnecessary diseases.