“César's genius is above all an existential adventure. Everything is played out between two destinies, César-faber, the loving ad demanding master of materials, and César-ludens, the dazzling poet of modern nature, prey to all its urgings, a visionary explorer with perpetually new insight.
[...] César's art oscillated between the two lines of expression which he had already establish and which are the marks of his fundamental dualism: assemblage sculpture, welded statuary, cast imprint, compression, expansion. Through the flexibility of this operational frame, César could adapt himself perfectlyn to the treatment of the most diverse materials: glass, gold and silver, plexiglass, heat-molded casts”.
Pierre Restany, The sculptor of the Twentieth-Century in Denyse Durand-Ruel, César. Catalogue Raisonné, volume I, 1947-1964, Éditions de la Différence, Parigi, 1994.