After your high-handed improvement(?) of 'Neo-plasticism' any co-operation is quite impossible for me.. .For the rest sans rancune - Piet Mondriaan.
Notes from Wikiquote
Mondrian's answer to Theo van Doesburg's retrospective article in 'De Stijl' magazine in 1929, where he wrote: 'By the lively and most articulate evolution the principles, developed mainly by P. Mondriaan in 'De Stijl' could not any longer be considered as generally characteristic of the opinion of the group.'