I myself have benefited from many mentors throughout my life.

We'll not be sending anyone into space before it is safe and the vehicle is well and truly tested.

An entrepreneur is somebody who is taking bold risks, is often doing things that have never been done before, trying to do things better. And an adventurer is challenging themselves, often doing things that have never been done before, seeing what they're capable of. In both cases, you've got to protect against the downside.

Have fun do good and the money will come

When I was 15, I left school to start a magazine, and it became a success because I wouldn't take no for an answer. I remember banging on James Baldwin's door to ask for an interview when he came to England. Then I got Jean-Paul Sartre's home phone number and asked him to contribute. If I'd been 30, he might have said no, but I was a 15-year-old with passion and he was charmed. Making money was always just a side product of having a good time and creating things nobody'd seen before.

Train people well enough so they can leave, treat them well enough so they don't want to.

I was interested in creating things that I could be proud of and so, you know, I was interested in being an editor of a magazine, things that I could be proud of, and so, you know, I was interested in being an editor of a magazine, but in order to be an editor of a magazine I had to become a publisher as well. I had to pay the bills. I had to worry about the printing and the paper manufacturing and the distribution of that magazine.