"conceptual artists are mystics rather than rationalists. they leap to conclusions that logic cannot reach."
-taken from:
"sentences on conceptual art" by sol lewitt
Minimal Artist Sol LeWitt wrote in 1967, that:
"the idea of 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...
" Source: H.H. Arnason, History of Modern Art, p. 562