Of all liars the most arrogant are biographers: those who would have us believe, having surveyed a few boxes full of letters, diaries, bank statements and photographs, that they can play at the recording angel and tell the whole truth about another human life.
In the digital age, there are a million and one ways to find out what someone you fancy is doing - but remember, they can see when you're watching their Instagram stories. If you fall deep into a hole of snooping, resist flicking through the digital diaries of their exes, or at least learn to cover your tracks.
I threw away the whole of my working history, my photograph albums, diaries and stage clothes. Shoving big, ugly discs on walls is a bit like rubbing people's faces in it, saying 'I am considerably richer than you.' It is completely unnecessary.
I read academic books on courtesan culture at the turn-of-the century in Shanghai such as Gail Hershatter's 'The Gender of Memory'. The diaries were mostly in the form of letters from courtesans to a lover who had disappeared or taken their savings.
If you're looking for a behind-the-scenes rock-n-roll biography, pick up Nikki Sixx's 'The Heroin Diaries'. If you want the world's most narcissistic high school yearbook, however, 'First Step 2 Forever' is your new bicycle.
Winston Churchill inspired my leadership philosophy. I've read a huge number of his writings, especially his diaries from the Second World War. His thoughts on leadership and duty have helped me as England captain.
I don't even use italics or boldface; that's clutter, not clarity. Fancy fonts are fine for blogs, just as calligraphy is fine for diaries. But when you're writing for anyone other than yourself, you want to get as universal as possible.
I kind of got my big break with 'The Princess Diaries' and during the press rounds for that everyone asked me: 'Did you always want to be a princess growing up?' And the truth was, no I wanted to be Catwoman.
My mother's incredible diaries, which she'd written from when she was 21, and even before that. She fell in love with my father when she was 12.
I started writing diaries, and mine were horrible. Oh, the monotony. Oh, the angst. I said, 'I don't want anyone to find these!' I destroyed them.