“Allowing, therefore, the great usefulness of the Government Schools, the Exhibitions, and the Museums both public and private, the question now arises as to what are the impediments to our future progress. The principal ones appear to me to be three.
# A want of a distinctive architecture, which is fatal to art generally.
# The want of a good costume, which is fatal to colour; and
# The want of a sufficient teaching of the figure, which is fatal to art in detail.
It will perhaps be as well to take these one by one.
The most fatal impediment of the three is undeniably the want of a distinctive architecture in the nineteenth century. Architecture is commonly called the mother of all the other arts, and these latter are all more or less affected by it in their details. In almost every age of the world except our own only one style of architecture has been in use, and consequently only one set of details. The designer had accordingly to master, 1. the figure, and the great principles of ornament; 2. those details of the architecture then practised which were necessary to his trade; and 3. the technical processes. Now what is the case in the present day? If we take a walk in the streets of London we may see at least half-a-dozen sorts of architecture, all with different details; and if we go to a museum we shall find specimens of the furniture, jewellery, &c., of these said different styles all beautifully classed and labelled. The student, instead of confining himself to one style as in former times, is expected to be master of all these said half-dozen, which is just as reasonable as asking him to write half-a-dozen poems in half-a-dozen languages, carefully preserving the idiomatic peculiarities of each. This we all know to be an impossibility, and the end is that our student, instead of thoroughly applying the principles of ornament to one style, is so bewildered by having the half-dozen on his hands, that he ends by knowing none of them as he ought to do. This is the case in almost every trade; and until the question of style gets gets settled, it is utterly hopeless to think about any great improvement in modern art.”

Source: Down and out in Paris and London (1933), Ch. 9; a remark by Boris
Source: Down and Out in Paris and London

translation from German, Fons Heijnsbroek, 2018
(original version, written by Jacoba in German:) Ich denke immer viel über die Kunstschule nach [ die Walden seit 1915/16 anfangen möchte].. .Wenn unser Streben wirklich in der Zukunft grosse Fortschritte machen soll, muss die Kunstschule Individualitäten hervorbringen, die durch uns wirklich vo inneren heraus weiter können und anfangen zu schaffen, ohne immer Bilder von anderen zu sehen.
Quote in a letter of Jacoba van Heemskerck to Herwarth Walden in Berlin, 15 August 1917; as cited in Jacoba van Heemskerck, kunstenares van het Expressionisme, Haags Gemeentemuseum The Hague, 1982, pp. 15-16
1910's

Source: Thus Spoke Zarathustra

Source: The Closing of the American Mind

undated quotes, The Daily Practice of Painting, Writings (1962-1993)

Source: Art applied to industry: a series of lectures, 1865, p. 91-92; Cited in: "William Burges 1827-1881 London Architect" in: In Pursuit of Beauty: Americans and the Aesthetic Movement http://books.google.com/books?id=56F8Qv96FzwC&pg=PA406. Metropolitan Museum of Art, 1 jan. 1986. p. 405

Light (1919), Ch. XVI - De Profundis Clamavi
Context: All is madness. And there is no one who will dare to rise and say that all is not madness, and that the future does not so appear — as fatal and unchangeable as a memory.
But how many men will there be who will dare, in face of the universal deluge which will be at the end as it was in the beginning, to get up and cry "No!" who will pronounce the terrible and irrefutable issue: —
"No! The interests of the people and the interests of all their present overlords are not the same.

The Vow of the Peacock (1835)

Money
The Note-Books of Samuel Butler (1912), Part XI - Cash and Credit