We do not mechanically connect the sensation of white with the idea of — Albert Gleizes

"In [his article] La Peinture et ses lois [Painting and its Laws, 1924] Gleizes deduced the rules of painting from the picture plane, its proportions, the movement of the human eye and the laws of the universe. This theory, later referred to as translation-rotation, ranks with the writings of Mondrian and Malevich as one of the most thorough expositions of the principles of abstract art, which in his case entailed the rejection not only of representation but also of geometric forms."

"To understand Cézanne is to foresee Cubism. Henceforth we are justified in saying that between this school and previous manifestations there is only a difference of intensity, and that in order to assure ourselves of this we have only to study the methods of this realism, which, departing from the superficial reality of Courbet, plunges with Cézanne into profound reality, growing luminous as it forces the unknowable to retreat."

"But we cannot enjoy in isolation; we wish to dazzle others with that which we daily snatch from the world of sense, and in return we wish others to show us their trophies. From a reciprocity of concessions arise those mixed images, which we hasten to confront with artistic creations in order to compute what they contain of the objective; that is of the purely conventional"

"There is not a canvas of that time that does not foreshadow the overthrow of the foundations on which the human race thought itself firmly established, where it felt itself secure. At the moment when the Ballets Russes were at their height, when the Neo-Impressionists and Fauves had dispensed with the drawing style of the Renaissance because it could not contain the purity of the colour - these humbly painted, angular, grey, ascetic pictures were, really, an unwelcome sight. It was not any upheaval of a geological nature that they prefigured, but a cataclysm in the human order. No tremor of the earth was registered, but a tremor of the spirit that disturbed the intellect of civilised man, too long the slave of his immobilised senses. At last he was beginning to suspect that something dangerous was approaching."

"Let the picture imitate nothing; let it nakedly present its raison dêtre. We should indeed be ungrateful were we to deplore the absence of all those things flowers, or landscape, or faces whose mere reflection it might have been. Nevertheless, let us admit that the reminiscence of natural forms cannot be absolutely banished; not yet, at all events. An art cannot be raised to the level of a pure effusion at the first step."

"The first manifestations of Cubism took people by surprise because their minds, ill-adapted as they are to the idea of movement, are never able, on the basis of what is in front of them, to envisage what is to come."