"What happened was, 2,400 years ago, the Greek Gang of Three, by whom I mean Aristotle, Plato and Socrates, started to think based on analysis, judgment and knowledge. . . As a result, design and perceptual thinking was never developed.
People assumed philosophers were doing it and so they blocked anyone else from doing it. But philosophers were not.
Philosophers may look out at the world from a stained-glass window, but after a while they stop looking at the world and start looking at the stained glass."
Edward de Bono