In a state of reverberation Irwin's terms of sudden, physical realization – bam! – call to mind the suddenly enlightening Zen slap or rap on the forehead. It also calls to mind [Philip Guston]'s own remark..."Look at any inspired painting...it's like a gong sounding; it puts you in a state of reverberation." Reverberation is another way of suggesting a kind of sudden, energetic, physical experience. Philip Guston, Robert Irwin: A Conditional Art I have pacified your mindIt's dark outsideScraps of the brocade of autumn zenartunderstanding
Both practical and aesthetic concerns The group [of Irwin, Howard, and Wortz]'s thinking here seems to have been influenced to a degree by Christopher Alexander's landmark article, "A City is Not a Tree" (1965)... Irwin referred specifically to Alexander's argument in his effort to sort out his own thinking about how the Miami International Airport might be designed with both practical and aesthetic concerns in mind, allowing for their overlap and emergence from the conditions on the ground. Matthew Simms, Robert Irwin: A Conditional Art A City Is Not a Tree