One needs a medium. The best is, one is his own medium. But don't be serious because seriousness belongs to a passed time. This medium, called you yourself will tell you to take absolutely the wrong material. That is very good, because only the wrong material used in the wrong way, will give the right picture, when you look at it from the right angle. Or the wrong angle. That leads us to the new ism: Anglism. The first art starting from England [the country of Schwitters' forced stay, when he wrote this quote], except the former shapes of art.

pp. 100-101 : in: 'That is my confession I have to make MERZ' (1940 – 1946), Kurt Schwitters.