The development of plastic art is determined by the will to visualize. Art of the past represented the subjective vision of 'naturalistic relationships'. Neoplasticism embodies a subjective vision of 'plastic' relationships… Pure thought, which does not signify a concept derived from natural phenomena but which is contained in numbers, measures, relationships and abstract lines, is revealed conceptually (as Reason) by Chinese, Greek and German philosophy, and aesthetically by contemporary Neoplasticism [= De Stijl.
Only a radical cleaning of social and artistic life as, in the domain of art, is already done by Dada, which is anti-sentimental and healthy to the core, since it is anti-art. Only unscrupulously striking down any systematically bred amateurism in any field, can prepare civilization for the 'New Vision's happiness which is greatly and purely alive in a dew people.
At Weimar [ the Bauhaus art school I have radically overturned everything. This is the famous academy, which now has the most modern teachers! I have talked to the pupils every evening and I have infused the poison of the new spirit everywhere. De Stijl will soon be published again and more radically. I have mountains of strength, and I know now that our notions will be victorious over everyone and everything.