On collaboration

'We are complementary characters,' St John says. 'Close, long-term collaborations can be difficult to maintain - they are like marriages. They require effort and patience in order for the good things to come out and to feel that you are doing something fuller and more relevant than you would be if you were working alone.'

http://www.telegraph.co.uk/culture/art/3563010/Caruso-St-John-the-pleasure-principles-of-architecture.html

Sorry about the Caruso St.John explosion...