Let the picture imitate nothing; let it nakedly present its raison d'être. We should indeed be ungrateful were we to deplore the absence of all those… - Albert Gleizes

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

We laugh out loud when we think of all the novices who expiate their literal understanding of the remarks of a cubist and their faith in absolute truth by laboriously placing side by side the six faces of a cube and both ears of a model seen in profile.

It was around 1910/11 that everyone, at every level of the social scale, became aware of those apparent eccentricities that were challenging the precarious certainties of the world. And it was uniquely the painting of a group, not of an individual, that was the cause.