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 LeWittObviously a drawing of a person is not a real person, but a drawing of a line is a real line.
Sol LeWittOnce it is out of his hand the artist has no control over the way a viewer will perceive the work. Different people will understand the same thing in a different way.
Sol LeWitt