Mark Rothko, Panel from the Seagram Murals, illustrating the gloss of the foreground image contrasting with the more matte background, 1958-1959

Duchamp smoking in front of Fountain, Duchamp Retrospective, Pasadena Art Museum, 1963

Contrary to a myth whose history and functions would repay further study, truth isn’t the reward of free spirits nor the privilege of those who have succeeded in liberating themselves. Truth is a thing of this world: It is produced only by virtue of multiple forms of constraint. And it induces regular effects of power. Each society has its own regime of truth, its ‘general politics’ of truth: that is, the type of discourse which it accepts and makes function as true.

Michel Foucault, Power/Knowledge

Milan Knížák
Paper Glider, 1965

Robert Adams
Sculpture
1955

Barbara Hepworth with the plaster of her Single Form (1961-64) at the Morris Singer foundry, London, May 1963