“Because of the economic crisis, China and the United States are bound together. This is a totally new phenomenon, and nobody will fight for ideology anymore. It's all about business.”

“Beijing's Olympics were very grand - they were trying to throw a party for the world, but the hosts didn't enjoy it. The government didn't care about people's feelings because it was trying to create an image.”

“Censorship is saying: 'I'm the one who says the last sentence. Whatever you say, the conclusion is mine.' But the internet is like a tree that is growing. The people will always have the last word - even if someone has a very weak, quiet voice. Such power will collapse because of a whisper.”

“China and the U.S. are two societies with very different attitudes towards opinion and criticism. In China, I am constantly under surveillance. Even my slightest, most innocuous move can - and often is - censored by Chinese authorities.”

“China has not established the rule of law and if there is a power above the law there is no social justice. Everybody can be subjected to harm. I'm just a citizen: my life is equal in value to any other. But I'm thankful that when I lost my freedom so many people shared feelings and put such touching effort into helping me.”

“Chinese citizens have never had the right to really express their opinions; in the constitution it says you can, but in the real world it is more dangerous. In the west people think it's a right they're born with. Here it's a right given by the government, and one that's not really practised.”

“Everyone wants an iPhone, but it would be impossible to design an iPhone in China because it's not a product; it's an understanding of human nature.”

“For all the tough talk about China during the presidential debates, Romney and Obama evaded any mention of China's suspect human rights record, corruption, and rule of law. By not tackling these controversial topics, the candidates are protecting a strategic partnership with China at the expense of essential human values and beliefs.”

“For me, it is OK as long as I can breathe, as long as my heart is pumping, as long as I can express myself.”

“I see the Beijing National Stadium as an architectural project. I accepted Herzog and De Meuron's invitation to collaborate on the design, and our proposal won the competition. From beginning to end, I stayed with the project. I am committed to fostering relationships between a city and its architecture.”

“If my art has nothing to do with people's pain and sorrow, what is 'art' for?”

“People are always wondering if I am an artist or political activist or politician. Maybe I'll just clearly tell you: Whatever I do is not art. Let's say it is just objects or materials, movies or writing, but not art, OK?”

“Police in China can do whatever they want; after 81 days in arbitrary detention you clearly realise that they don't have to obey their own laws. In a society like this there is no negotiation, no discussion, except to tell you that power can crush you any time they want - not only you, your whole family and all people like you.”

“The Beijing Olympics and the Shanghai World Expo show just how much effort China is willing to spend to enter the global stage. But while China desires to understand the world, it fails to accept its universal values.”

“The internet is a wild land with its own games, languages and gestures through which we are starting to share common feelings.”

“The Olympic Games are highly commercialised. They purport to follow the traditions of an ancient athletics competition, but today it is the commercial aspect that is most apparent. I have seen how, through sport, cities and corporations compete against each other for financial gain.”

“The seed is a household object but at the same time it is a revolutionary symbol.”

“This nation is notorious for its ability to make or fake anything cheaply. 'Made-in-China' goods now fill homes around the world. But our giant country has a small problem. We can't manufacture the happiness of our people.”

“To protect the right of expression is the central part of an artist's activity... In China many essential rights are lacking, and I wanted to remind people of this.”

“To survive, China had to open up to the West. It could not survive otherwise. This was after many millions have died of hunger in a country that was like North Korea is today. Once we became part of global competition, we had to agree to some rules. It's painful, but we had to. Otherwise there was no way to survive.”

“To the media, I have become a symbolic figure, critical of China. According to the government, I am a dangerous threat.”

“To work in architecture you are so much involved with society, with politics, with bureaucrats. It's a very complicated process to do large projects. You start to see the society, how it functions, how it works. Then you have a lot of criticism about how it works.”

“Twitter was like a poem. It was rich, real and spontaneous. It really fit my style. In a year and a half, I tweeted 60,000 tweets, over 100,000 words. I spent a minimum eight hours a day on it, sometimes 24 hours.”

“We see the tendency in the world to criticise democracy and sometimes even to say that authoritarian countries like China are more efficient. That is very short-sighted. China looks efficient only because it can sacrifice most people's rights. This is not something the west should be happy about.”

“When you have strict censorship of the internet, young students cannot receive a full education. Their view of the world is imbalanced. There can be no true discussion of the issues.”

“Widespread state control over art and culture has left no room for freedom of expression in the country. For more than 60 years, anyone with a dissenting opinion has been suppressed. Chinese art is merely a product: it avoids any meaningful engagement. There is no larger context. Its only purpose is to charm viewers with its ambiguity.”