- Robert Irwin: I really don't think that revolutions cause change. Change causes revolutions. What happens is that at a certain point, when the shape of our heads has changed to a great enough degree, that the world around us, the physical world around us becomes restrictive in a way we're forced to, in a sense, carry out a kind of revolutionary activity; in other words, we have to act it out socially. Real change comes over a long span of time, and is probably not recognizable and can't be assigned to an individual.
- Barbara Rose: Bold colorful images reflected the optimism of the Kennedy era, while mass media channeled these images back to a public programmed for visual sensation.
- Barbara Rose: New forms, new media, new techniques established the leadership of the American avant garde and many artists became intent on defining their art as uniquely American.