..the flag is green with a red spot in the center; above, the blue of the sky, the orange-tinted white of the walls, and the orange-grey of the cloud… - Georges Seurat

The purity of the spectral element being the keystone of my.. ..searching for an optical formula on this basis ever, since I held a brush 1876 - 1884.. ..having read Charles Blanc in school and therefore knowing Chevreul's laws and Eugene Delacroix's precepts, having read the studies by the same Charles Blanc on the same painter [= Delacroix]

Signac, definitively won over and who had just modified the paintings 'The Milliner', and 'Appreteuse et garnisseuse Modes' [exhibited in May 1886], Rue de Caire, p. 174J, following my technique at the same time as I was finishing the 'Jatte'.. .You'll agree that there's a nuance here and that if I was unknown in 85 [ Félix Fénéon did not mention Seurat in his article as leader / initiator of Neo-Impressionism|Neo-Impressionism I nonetheless existed, I and my vision that you have described in an impersonal fashion so superbly, aside from one or two insignificant details.

The means of expression is the optical mixture of tones, of tints (of local color and the illuminating color: sun, oil lamp, gas, etc.), that is, of the lights and of their reactions (shadows) following the laws of contrast, of gradation, of irradiation.