"Towards the end of 1958, I greatly increased.. ..the works done with what is called poor material. I felt the need to persist and go deeper with the entire message of what is insignificant, worn or dramatised by time.. .In fact, it was the most conscious resumption of subjects that had often attracted me. In my research, I had discovered this material, one I find loaded with strange suggestions, which is cardboard. A grey, anonymous material that won't be easily manipulated, for which very reason the slightest mark of the hand torments it and destroys it. But the piece of cardboard, the box, the lid, the tray.. ..dirty clothes , old furniture, everyday objects; not used as a representation or theme in the picture but as real bodies, objects."

“..the wall, the window or the door — and so many other images that parade in my canvases — are indeed there and I am far from trying to hide the fact. With this I mean that I do not think that images, in my works, should be considered as indifferent excuses to prop visual elements, as the 'subject-matters' were said to be for Impressionists and Fauves. From those 'subject-matters', it is further said, the ensuing abstractionists or Informalists liberated themselves. My walls, windows or doors — or at least my suggestions of them — do not avoid their responsibility and hold their full archetypal or symbolic weight.”

“The material presence of the work only serves as a conveyer launching an invitation to the observer to take part of the comprehensive game of the thousand and one emotions and visions.”

“When I talk of reality, I am always thinking of essentials. Profundity is not located in some remote, inaccessible region. It is rooted in everyday life. That is what great thinkers have taught me, above all the philosophers of the Far East, for whom true wisdom — which I am far from achieving — is the conjunction of samsara and nirvana . To achieve contact with reality is not to transport oneself elsewhere, it is not transcendence but thorough immersion in one's surroundings. A reality which is neither purely physical nor metaphysical, but both at once.”

“..the equivalence of sounds, gratings, scratches, explosions, shots, blows, hammering, shouts, resonance, echoes in space; meditation of a cosmic theme, reflection for the contemplation of the earth, of magma, of lava, of ash; battlefield; garden; play-field; destiny of the ephemeral.. .Far from the cliché people have of artists holding the baggage of necessary originality, personality, style, etc., that calls for an outsider's discussion of the works, for the author there is, foremost, a nucleus of thought that is more anonymous and collective and of which artists are but humble servants. This is surely the zone where wisdom is deposited, the wisdom that one may really find beneath all ideologies and the contingencies of this world. It is the impulse of our life instinct for knowledge, love and freedom that has been kept and fed by the wisdom of all time.”

“In actual fact, contemplation is not a form of inactivity but an exercise.”

“An image means nothing. It is just a door, leading to the next door. It will never happens that we will find the truth we are looking for just in an image; it will happen behind the last door that the spectator discover the truth, because of his own efforts.”