'Goethe considered the Newtonian theory to be a mathematical abstraction in contrast with the testimony of the eyes, and thus downright absurd. In fact, he claimed that light is the most simple and homogeneous substance, and the variety of colours arise at the edges where dark and light meet. Goethe set the Greeks’ approach to colour against Newton’s for their having caught the subjective side of colour perception. The Greeks already knew, Goethe wrote, that: ‘If the eye were not Sun-like, it could never see the Sun.’

https://aeon.co/essays/can-we-hope-to-understand-how-the-greeks-saw-their-world