Sol Lewitt: A Wall Divided Vertically into Fifteen Equal Parts, Each with a Different Line Direction and Color, and All Combinations 1970
"In conceptual art the idea or concept is the most important aspect of the work . . . all planning and decisions are made beforehand and the execution is a perfunctory affair. The idea becomes the machine that makes the art."
Sol LeWitt: "Paragraphs on Conceptual Art," Artforum, summer issue, 1967