As a young man keen to get himself known during and following WWl, he got to know Picasso, Braque, Reverdy, Salmon, Jacob, Cendrars and particularly Apollinaire (he edited Reverdy and Jacob). His sidekick Pia, and Arland, were among those who stayed close to him. He visited his admired Ensor in Ostend, and collaborated on an abortive piece with Varèse. Mac Orlan received him, Paz met him in civil-war Spain, and Resnais married his daughter. He went to Berlin with Gide (Hitler refusing to see them), and to the USSR with Aragon and Nizan. Camus, then unknown, corresponded with him, and admired him greatly.