“A really important point for me is that I don't use any brand or corporate sponsors. So I have no responsibility to anyone but myself and the subjects.”

“Art is not meant to change the world.”

“Art is not meant to change the world, but when you see people interacting, when you see an impact on their lives, then I guess in a smaller way, this is changing the world. So, that's what I believe in. That's why I'm into creating more and more interactions.”

“Art is not supposed to change the world, to change practical things, but to change perceptions. Art can change the way we see the world. Art can create an analogy.”

“Can art change the world? Maybe... we should change the question: Can art change people's lives?”

“For me, the gallery legitimates the art production and helps build collections. I don't think an artist should do everything by himself forever. I did it for years and then slowly built my circle of trust.”

“I am an all-surface wallpaper man that retired to become a printer.”

“I grew up in the suburbs, a calm suburb, without tension, with working-class and middle-class people mixed together.”

“I should never impose an image forever. I like how ephemeral it can be.”

“I started when I was 15 years old. And at that time, I was not thinking about changing the world, I was doing graffiti - writing my name everywhere, using the city as a canvas. I was going in the tunnels of Paris, on the rooftops with my friends. Each trip was an excursion, was an adventure.”

“I want to create the largest-ever participatory art project and highlight the concept of Shadow Philanthropy, where people help others create work without taking credit for it - through this we can really change the world.”

“If there's one thing I've always taken care of with my work, it's that it's never an advertisement for anything other than the work itself and for the people it's about - no 'Coca-Cola presents.'”

“If you give me Times Square, I want to give it back to the people.”

“I've always been so surprised by how people interpret my photos in context.”

“Most of the time, people look at a piece of art online when it is just a few blocks from their house. Changing the way you walk home everyday fills life with surprises.”

“My parents were born abroad. I was born in France, but I feel comfortable everywhere - I don't see the borders.”

“The beauty of an art project is that you cannot always measure the impact, but one day it can become clear.”

“The city's the best gallery I could imagine. I would never have to make a book and then present it to a gallery and let them decide if my work was nice enough to show it to people. I would control it directly with the public in the streets.”

“The fact that I stay anonymous means I can exhibit wherever I want. No one knows my name, so it's easy for me to travel.”

“The Internet doesn't always play a great role for art, especially art in the street, as people take what they see for the final image of it. But the most interesting thing about street art is to see it for real, to understand what it means and where it's displayed.”

“The more social media we have, the more we think we're connecting, yet we are really disconnecting from each other.”

“What I love about the TED is that it's not, 'Hey, take this check and enjoy.' It's, 'Do something with this, and we'll help you.' I think that's the most beautiful prize I've ever heard of.”

“What we see changes who we are.”

“When I was little, I didn't really travel - from the suburbs to Paris was already a journey. I had a foreigner's eye on the city, and I still enjoy that point of view. Then there's the fact that one of the things that touches me most is injustice.”

“When you're in New York, people don't say, 'We're happy you came to New York.' In D.C., people thank you for coming here and bringing art here.”

“With humour, there is life.”