In 1962, Popjak and I left the service of the Medical Research Council and became co-directors of the Milstead Laboratory of Chemical Enzymology set up by Shell Research Ltd.

At the National Institute for Medical Research, I came into contact with biological scientists and formed collaborative projects with several of them. In particular, George Popjak and I shared an interest in cholesterol.

Life does depend on accurate replication of molecules, and its complexity often requires that an enzyme shall accept one molecular species or type and transform it to equally specific products.

Part of my childhood was spent in Sydney and part in rural New South Wales, at Armidale.

I've always treated my career like independent. Everything that I got is because of myself, my own endorsements, my own touring myself.

Ah, typical writing day? Well, I tend to do e-mail and the business stuff of writing more in the morning while my brain wakes up and then write more in the afternoon, sometimes from about 11 until 5, or 12 until 5. If a story is driving me nuts, I'll work more in the evenings, but usually I try not to do that. That's family time.

Kanye didn't sign me to hold my hand and walk me through my career. He signed me because he believed in me as an artist and gave me a co-sign. I didn't see that at first. I saw it as him about to hold my hand, and I'm about to be the biggest artist because he's the biggest artist, you know?

I don't want to plan my career. That would be a business plan. Filmmaking is not a business plan.