All the constructions of this first phase of the youth of the group bear witness to its constant characteristics. The epic imagination is a proof of … - Albert Gleizes

In nearly all the papers, all composure was lost. The critics would begin by saying: 'there is no need to devote much space to the Cubists, who are utterly without importance', and then they furiously gave them seven columns out of the ten that were taken up, at that time, by the Salon.

Never had the critics been so violent as they were at that time. From which it became clear that these paintings - and I specify the names of the painters who were, alone, the reluctant causes of all this frenzy: Jean Metzinger, Le Fauconnier, Fernand Léger, Robert Delaunay and myself - appeared as a threat to an order that everyone thought had been established forever.

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.