M. C. Escher (1898–1972) Dutch graphic artist
Quote of Escher, 1959; as cited in '3. The approach to infinity' http://pi.math.cornell.edu/~mec/Winter2009/Mihai/section3.html, in: M.C. Escher and Hyperbolic Geometry http://pi.math.cornell.edu/~mec/Winter2009/Mihai/index.html - Math Explorer Club <br class="br">1950's