You must have heard that last autumn I almost got married, but I am glad I realized in time that it had been an illusion, all those beautiful things.… - Piet Mondrian

..the universal cannot be expressed purely so long as the particular obstructs the path. Only when this is no longer the case can the universal consciousness (intuition, that is) which is at the origin of all art, be rendered directly, giving birth to a purified art expression.
This, however, cannot appear before its proper time. For it is the spirit of the times that determines artistic expression, which, in turn, reflects the spirit of the times. But at the present moment, that form of art alone is truly alive which expresses our present - or future - consciousness.

He [ Jan Toorop, an older and famous Dutch religious painter] sees the Catholic faith as A. Besant, [a British Theosophiste and women's right activiste, then] views it in its primeval period: the Catholic religion as it was originally, is the same as Theosophy, is it not? I remained broadly in agreement with Toorop, and I could tell that he goes to the depths, and that he is searching for the spiritual.

the Cubists in Paris made me see that there was also a possibility of suppressing the natural aspect of form. I continued my research by abstracting the form and purifying the colour more and more. While working, I arrived at suppressing the closed effect of abstract form, expressing myself exclusively by means of the straight line in rectangular opposition; thus by rectangular planes of colour with white, grey and black. At that time, I encountered artists with approximately the same spirit, First Van der Leck, who, though still figurative, painted in compact planes of pure colour. My more or less cubist technique - in consequence still more or less picturesque - underwent the influence of his exact technique. Shortly afterwards I had the pleasure of making the acquaintance of Van Doesburg. Full of vitality and zeal for the already international movement that was called 'abstract', and most sincerely appreciative of my work, he came to ask me to collaborate in a review he intended to publish, and which he [Theo van Doesburg] was to call 'De Stijl'. I was happy with an opportunity to publish my ideas on art, which I was engaged in writing down: I saw the possibility of contacts with similar efforts.