And now about architects in general – I have to say it, Does [Theo van Doesburg], when 'De Stijl' was founded I left it up to you, but I never did agree with you when you ranked the architects alongside us, alongside our 'N. B.' (Nieuwe Beelding / Neo-Plasticism) I knew then that it would lead to conflict... I cannot write about architecture, because I'm not an architect. I mean, I cannot write about the way I write about painting. Later on, though, I will put forward a few ideas.

In a letter to Theo van Doesburg, Paris 9 July 1918; as quoted in Mondrian, -The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 139