When an artist uses a conceptual form of art, it means that all of the planning and decisions are made beforehand and the execution is a perfunctory affair. The idea becomes a machine that makes the art.
Sol LeWittThe most interesting characteristic of the cube is that it is relatively uninteresting. Compared to any other three-dimensional form, the cube lacks any aggressive force, implies no motion, and is least emotive. Therefore, it is the best form to use as a basic unit for any more elaborate function, the grammatical device from which the work may proceed.
Sol LeWitt