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April 10, 2026
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"Forgive me of saying so, but good things just have to grow very slowly. I say this in connection with your [Doesburg's] plans.. ..for launching a journal [ De Stijl. I do not think that the time is favourable for it. More must be achieved in art in that direction. I hardly know anyone who is really creating art in our style, in other words, art which has arrived.. ..(i.e. you will have to include in it [in the planned art-Journal '[[w:De Stijl|De Stijl'] what is not consistent with our ideas.)"
"You should remember that my things are still intended to be paintings, that is to say, they are plastic representations, in and by themselves, not part of a building. Furthermore, they have been made in a small room. Also, that I use subdued colours for the time being, adapting myself to the present surroundings and to the outer world; this does not mean that I should not prefer a pure colouring. Otherwise you might think that I contradict myself in my work."
"This year [Paris 1916-17, when Mondrian didn't finish hardly any painting] I have worked hard, and done much searching. A great deal of the old [way of painting] was due for a change. I was searching for a purer representation, which is why I wasn't satisfied with anything.. .The large black and white one ['Composition in line', 1917 - second state] has also been totally reworked, which I now regret; it would have been better to leave it as it was, and make a new one. But when one is searching, one does not now in advance just how to go about it."
"Quote in a letter of 7 March 1917 to H. P. Bremmer; as cited in Mondrian, -The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 91"
"Kandinsky points out [in his book On the Spiritual in Art] that Theosophy (in its true sense; not as it generally appears) is yet another expression of the same spiritual movement which we are now seeing in painting."
"With regard to the diagonal, too, I am in complete agreement with you [with Theo van Doesburg ]. As soon as it appears together with straight [horizontal and vertical] lines, I believe it should be condemned.. .A while back I started a thing entirely in diamonds [diamond-shape] like this [his sketch in the letter of several diamond-forms]. I have to find out if it's possible: intellectually I'm inclined to say it is. There's something to be said for the idea, because perpendicular and flat lines can be seen everywhere in nature; by using a diagonal line I would be canceling that out. But I'm inclined to say that this cannot be combined with perpendicular and flat lines or with different kinds of slanting lines."
"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.' ( / 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 Paris, I quickly mastered the Foxtrot, the Shimmy and the One Step, [he liked the Shimmy best:] At first, the heel-toe was sort of tricky. Nowadays, they find ways around it."
"The free placement of the means of expression is a privilege enjoyed exclusively by painting [different opinion with Theo van Doesburg]] ]. The sister arts, sculpture and architecture, are more restricted in this respect. The other arts enjoy even less scope in their employment of the means of expression."
"I remained there [in The Netherlands, 1914-18] for the duration of the war, continuing my work of abstraction in a series of church. facades, trees, houses, etc. But I felt that I still worked as an Impressionist and was continuing to express particular feelings, not pure reality. Although I was thoroughly conscious that we can never be absolutely 'objective', I felt that one can become less and less subjective, until the subjective no longer predominates in one's work. More and more I excluded from my painting all curved lines, until finally my compositions consisted only of vertical and horizontal lines which formed crosses, each separate and detached from the other. Observing sea, sky and stars, I sought to indicate their plastic function through a multiplicity crossing verticals and horizontals."
"Dear Does [= Theo van Doesburg ], thank you for your letter.. .I was glad to know that in principle you are in favour of the diamond hanging [Mondrian's painting, he made in 1919, hanging in a rhombus] and I think that in practice you will approve of this method for some of my things. You look at the thing [painting] itself, and not only the outward appearance.."
"And then about whether or not to work from a given in nature. In my view, you [ Van Doesburg ] define this in a rather narrow sense. In the main, I do agree with you that the destruction of the natural, and it reconstruction, must be accomplished according to a spiritual image, but I believe that we should take a broad view here. What is natural does not have to be a representation of something. I'm now working on a thing that is a reconstruction of a starry sky ['Composition, Checkerboard Dark Colours', 1919] and yet I'm making it without a given from nature. Someone who says he uses a theme from nature can be right, but also someone who says he uses nothing at all."
"I am searching for the proper harmony of rhythm and unchanging proportion, as I wrote in the article. And I cannot tell you how difficult it is. [Mondrian is reacting on Van Doesburg criticism of the strong domination of the regular grid in Mondrian's latest paintings]"
"My new installment [Mondrian moved to a new studio in Paris, where he applied the principles of Neo-Plasticism into the interior of his studio ] is about decoration, occasioned by my studio here, where I've set up a sort of display. I couldn't work directly on the walls, so I had to make do with pieces of painted cardboard. But in any case, I am now convinced that in this way it is possible to realize Neo-Plasticism in the interior. Of course I had to paint the furniture as well. It was worth the effort, as it has a favourable influence on my work."
"The new vision.. ..does not proceed from a fixed point. Its viewpoint is everywhere, and not limited to any one position [in space]. Nor is it bound by space or time (in accordance with the theory of relativity) [of Einstein ]. In practice, the viewpoint is in front of the plane.. .Thus this new vision sees architecture as a multiplicity of planes; again flat. This multiplicity composes itself (in an abstract sense) into a flat image [in contrast to Theo van Doesburg who emphasized the dynamic position of the viewer – a central idea of Futurism in 1919]."
"Nature moves me deeply; I paint nature (now) only in a different way.."
"[I am searching] pure expression of that incomprehensible power, which works universally."
"The cultivated man of today is gradually turning away from natural things, and his life is becoming more and more abstract. Natural (external) things become more and more automatic, and we observe that our vital attention fastens more and more on internal things."
"Modern man - although a unity of body, mind, and soul - exhibits a changed consciousness: every expression of his life has today a different aspect, that is, an aspect more positively abstract."
"It is the same with art. Art will become the product of another duality in man: the product of a cultivated externality and of an inwardness deepened and more conscious. As a pure representation of the human mind, art will express itself in an aesthetically purified, that is to say, abstract form."
"The truly modern artist is aware of abstraction in an emotion of beauty; he is conscious of the fact that the emotion of beauty is cosmic, universal. This conscious recognition has for its corollary an abstract plasticism, for man adheres only to what is universal."
"The new plastic idea cannot, therefore, take the form of a natural or concrete representation, although the latter does always indicate the universal to a degree, or at least conceals it within."
"This new plastic idea will ignore the particulars of appearance, that is to say, natural form and color. On the contrary, it should find its expression in the abstraction of form and color, that is to say, in the straight line and the clearly defined primary color."
"These universal means of expression were discovered in modern painting by a logical and gradual progress toward ever more abstract form and color. Once the solution was discovered, there followed the exact representation of relations alone, that is to say, of the essential and fundamental element in any plastic emotion of the beautiful."
"The new plastic idea thus correctly represents actual aesthetic relationships. To the modern artist, it is a natural consequence of all the plastic ideas of the past. This is particularly true of painting, which is the art least bound to contingencies. The picture can be a pure reflection of life in its deepest essence."
"However, new plasticism is pure painting [in contrast with the opinion of Theo van Doesburg, then]: the means of expression still are form and color, though these are completely interiorized; the straight line and flat color remain purely pictorial means of expression."
"The balanced relation is the purest representation of universality, of the harmony and unity which are inherent characteristics of the mind."
"If, then, we focus our attention on the balanced relation, we shall be able to see unity in natural things. However, there it appears under a veil. But even though we never find unity expressed exactly, we can unify every representation, in other words, the exact representation of unity can be expressed; it must be expressed, for it is not visible in concrete reality."
"..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."
"Composition allows the artist the greatest possible freedom, so that his subjectivity can express itself, to a certain degree, for as long as needed."
"The rhythm of relations of color and size makes the absolute appear in the relativity of time and space."
"In terms of composition the new plasticism is dualistic. Through the exact reconstruction of cosmic relations it is a direct expression of the universal; by its rhythm, by the material reality of its plastic form, it expresses the artist's individual subjectivity. It thus unfolds before us a whole world of universal beauty without thereby renouncing the human element."
"They [Mondrian's friends in Paris, Tonia and Wim Stieltjes] are receptive to the new, although they do not know what it is. Thus I do occasionally feel that my effort has not been in vain. They find the idea of the N.B. [= Dutch: / Neo Plasticism] sound and quite magnificent, but think that it will be quite a long time before people are ready for it."
"Ru-h-ru-h-ru-h-h-h-h. Pooh-ooh-ooh. Tick-tick-tick-tick. Pre. R-r-r-r-r-uh-h. Huh! Bang. Su-su-su-ur. Booh-a-ah. R-r-r-r. Pooh…multitude of sounds, all mixed together. Motorcars, buses, carts, carriages, people, lamp-posts, trees.. all mixed together; in front of cafés, shops, offices, posters, shop windows: multitude of things. Motion and standstills: different movement. Movement in space and movement in time. Multitude of images and all sorts of ideas. Images are veiled truths. All different truths form what is true. What is individual does not display all in a single image.. ..Ru-ru-ru-u-u. Pre. Images are boundaries. Multitude of images and all sorts of boundaries. Elimination of images and boundaries through all sorts of images. Boundary clouds what is true. Rebus: where is what is true? Boundaries are just as relative as images, as time and space. [Mondrian's poem has strong connections with 'dynamism' of Futurism]"
"The artist make things move, and is moved. He is policeman, motor car, everything at once. He who makes things move also creates rest. That which aesthetically is brought to rest is art."
"A particular thought is not the same as a concentrated, creative thought, which is actually a feeling of inward-looking calm. The former produces a descriptive and morpho-plastic art, the latter a purely plastic manifestation. It is a question of the universal versus the individual. [Mondrian refers to André Gide's 'Dada', in 'Nouvelle Revue Francaise', 1 April 1920]"
"I am very glad that the criticism is what it is. It is all right that way. In complete opposition to our direction. Otherwise we [De Stijl-artists] would have nothing to do. I got another impression from your letter, but it is much better this way. There we see again: we have straightly to oppose the whole to-do, Ã part."
"[Paris, as modern city] is beautiful in its perfection, but perfection means death and decay. Thus interfering with the process of dying is a crime against perfection: it stands in the way of a higher perfection."
"I believe that new art must differ totally in its manifestation from art as we know it, and people may be very reluctant to accept this. It is perhaps true to say, as someone did of cubism, that 'To sum up: since art is a need to create rather than imitate, the 'cubists' rousing themselves from the sentimentality born of the picturesque aspect of some natural spectacle or other, disengage the fleeting aspects from those which are constant and absolute, and with the aid of these two elements, construct a reality equivalent to that which they see before them'. Thus it is a question of finding the true equivalence (that, offered by Cubism is still not true equivalence), and this can only be 'that which is not nature at all, and is nonetheless one with nature [like in Neo-Plasticism / De Stijl ]."
"Having red several of your books, I wonder if you [ Rudolf Steiner, the German founder of anthroposophy] could find the time to read my brochure 'Le Néo-Plasticisme', which I am closing. I believe that Neo-Plasticism is the art of the foreseeable future for all true anthroposophists and theosophists. Neo-Plasticism creates harmony through the equivalence of the two extremes: the universal and the individual. The former by 'revelation', the latter by 'deduction'.. .It was impossible to bring about an equilibrium of relationships other than by destroying the 'form', and replacing it by a new 'universal' expressive means."
"Neo-Plasticism has its roots in Cubism. It could just as easy be called the Painting of Real Abstraction. Since the abstract can be expressed by a plastic reality.. .It achieves what all painting has tried to achieve but has been able to express only in a veiled manner. By their position and their dimension as well as by the importance of given to colour, the coloured planes express in a plastic way only relations and not forms. Neo-Plasticism imparts to these relations an aesthetic balance and thereby expresses universal harmony.. .For the moment what art had discovered must still be limited to art itself. Our environment cannot yet be realized as a creation of pure harmony. Art today is at the very point formerly occupied by religion. In its deepest meaning art was the transposition of the natural [into another plane]; in practice it always sought to achieve harmony between man and untransposed nature. Generally speaking, so do Theosophy and Anthroposophy, although these already possessed the original symbol of balance. And this is why they never were able to achieve equivalent relations, that is to say true harmony."
"Art on the contrary sought this harmony in practice [of art itself]. More and more in its creations it has given inwardness to that what surrounds us in nature, until, in Neo-Plasticism, nature is no longer dominant. This achievement of balance may prepare the way for the fulfillment of man and signal the end of (what we call) art."
"It is of small importance whether De Stijl still exists as a 'group'; a new style was born, a new aesthetic created; it needs only to be understood – and cultivated."
"[jazz and Neo-Plasticism are] highly revolutionary phenomena: they are destructive constructive. They do not destroy the actual content of form, but rather deepen form only in order to elevate it to a new order. They break the bonds of 'form as individuality' in order to make possible a universal unity."
"It may be noted that in Neo-Plastic art the crucial thing is the right angel, that is, the right-angle lines. And not whether the position of the lines is vertical or horizontal.. .So it is possible to make very beautiful things while placing the lines in a diagonal position."
"After your high-handed improvement(?) of 'Neo-plasticism' any co-operation is quite impossible for me.. .For the rest sans rancune - Piet Mondriaan."
"Well, I think my paintings are fast enough already..."
"Though I do, of course agree with the principles you have mentioned, I am returning the paper unsigned, as I do not want to belong to a group. A group of people with one aim is not as yet a single-minded group and as this does not exist, a consistent group remains impossible. And a larger group only makes sense for joint exhibitions and for spreading ideas. I will therefore not participate in the other group either, but I have promised my collaboration in this respect. If you definitely want to form a group, you can always invite myself and others who are proved to be suitable. Only on such a basis I will collaborate with the other group as well."
"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."
"To show that this end [of art by its dissolution into real life] is only a beginning, it is essential that.. ..the series of galleries [of the future museum of modern art] be followed by a room in which painting and sculpture will be realized by the interior itself.. ..demonstrating that what is lost for art is gained for life. This room could therefore be designed for use as a lecture room, a restaurant.. ..as a bar with an American jazz band. [Mondrian's reaction on a questionnaire (c. 1931?)]"