Charles Saatchi

Art collectors are pretty insignificant in the scheme of things. What matters and survives is the art. I buy art that I like. I buy it to show it off in exhibitions. Then, if I feel like it, I sell it and buy more art.

Do I sometimes hope I wake up in the morning and people are like, 'What's wrong with her? She looks emaciated.' Of course I would love that. I'm such a clothes whore, I would love the opportunity to be a hanger. But I think I'm more confident than I've ever felt in my life.

In 2009, novelty toymaker Maxfield & Oberton released Buckyballs, sets of curiously powerful magnetic marbles that became the most popular cubicle toy since the Rubik's Cube, selling more than 2 million units in 15 countries.