Virtue is not photogenic. What is it to be a nice guy? To be nothing, that's what. A big fat zero with a smile for everybody.

OK, I don't love the red carpet... You arrive and all the photographers are shouting at you 'Smile!' I'm like: what, you want me to lift my leg and twirl? No.

This is the trouble with cheating: there are no acceptable rules, or laws. It could be a smile, or dancing to a song that you considered to be indefinably 'ours'. It can feel like cheating to go to a restaurant that you used to go to with someone else. Keeping photographs of exes can infuriate, like retrospective cheating.

One afternoon, on my way to the campus - I was majoring in political science at Nairobi University - a photographer by the name of Peter Beard stopped me in the street and asked me if I'd ever been photographed.

For those aspiring to make a living from travel photography, it's a sad fact that the boring shots are the shots that are going to make you money.

A photograph doesn't gain weight or lose weight, or change from being happy to being sad. It's frozen. You can use it, then recycle it.

All pictures are unnatural. All pictures are sad because they're about dead people. Paintings you don't think of in a special time or with a specific event. With photos I always think I'm looking at something dead.

I find it a bit sad that there is no photo of me hanging on the walls in the Berlin Museum at Checkpoint Charlie.

Sepia in particular tends to make everything look a bit romantic and almost sentimental, hence the fact that it remains such a popular choice for wedding photographs.

Kim Kardashian's marriage to Kris Humphries famously lasted 72 days, and was reported in the tabloids as being all about the big bucks paid by magazines for the bridal photos: it is a spectacle of a bride-to-be as entrepreneur, not as romantic heroine; the groom, in this scenario, is nothing but a prop.

My great-grandfather was in the army in India, and we have photographs of my family there in full Victorian dress. They're incredibly romantic.

I don't think that digital photography is romantic yet. It's not sympathetic the way that film is.

You do your work as a photographer and everything becomes past. Words are more like thoughts; the photographer's picture is always surrounded by a kind of romantic glamor - no matter what you do, and how you twist it.

I'm Jewish and respect the traditions of Judaism, but through all the time I've spent photographing nature, I also have a deep appreciation for the power of the universe. No, not the power of the universe, but just celebrating life.

For me, every photograph is a portrait; the clothes are just a vehicle for what I want to say. You're photographing a relationship with the person you're shooting; there's an exchange, and that's what that picture is.

Orbs are little bundles of positive energy and they think they can move between 500 and 1,000 miles per hour. They look like little round planets, but they come in all shapes and sizes. Conventional photography can't pick them up, but digital cameras can.

Being someone who people want to photograph, you have to open yourself up to the positive and negative. It is what it is.

I have grown up but that should be a positive thing. When you look at a photo album it's lovely to remember being so young but it's also good to know you grew up!

I got scouted for modeling on the street. I'm such a tomboy - still am. I just never thought about modeling before, but I thought, 'Ooh, interesting, similar world, perhaps it's a way into something.' Then, I was on my third photo shoot ever, and Adam Leech from 'Downtown Abbey' saw me reading poetry and asked me to recite some.

It could be that all awful dictators are frustrated artists - Mao with his poetry and Mussolini with his monuments. Stalin was once a journalistic hack, and I can personally testify to how frustrated they are. Pol Pot left a very edgy photo collection behind. And Osama seems quite interested in video.

I have a publishing company of books by me and books of others. It drew people to poetry readings and photo exhibitions and painting exhibitions that I've been doing for years before that.

All I want in life is to pet my dog and cat. After that, all I want to do is post photos of them. Mostly because they're the cutest things ever, but also because I don't have to worry about how ugly I look in the photo.

When it comes to wildlife photography, you need to have luck and patience.

Sometimes they are a matter of luck; the photographer could not expect or hope for them. Sometimes they are a matter of patience, waiting for an effect to be repeated that he has seen and lost or for one that he anticipates.