Sol LeWitt (1928–2007) americký sochař a malíř
Originál: (en) Conceptual art is not necessarily logical. The ideas need not be complex. Most ideas that are successful are ludicrously simple. Successful ideas generally have the appearance of simplicity because they seem inevitable.
Zdroj: [Kimmelman, Michael, Sol LeWitt, Master of Conceptualism, Dies at 78, http://www.nytimes.com/2007/04/09/arts/design/09lewitt.html?pagewanted=all&_r=0, 2004-04-09, 2007-04-12, 2015-02-14, The New York Times, New York, anglicky]
