People, not their eyes, see.

Were the eye not attuned to the Sun,
The Sun could never be seen by it.

Citado por Hanson, a abrir o primeiro capítulo do clássico Patterns of Discovery.

Um pequenino recorte:
Seeing is an experience. A retinal reaction is only a physical state — a photochemical excitation. Physiologists have not always appreciated the differences between experiences and physical states. People, not their eyes, see. Cameras, and eye-balls, are blind.

Ler em linha o primeiro capítulo.

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