A Cor segundo Goethe V - O Azul

Georgia O'Keeffe, Blue Morning Glories (1935)

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«(..) Its appearance, then, is a kind of contradiction between excitement and repose.

As the upper sky and distant mountains appear blue, so a blue surface seems to retire from us.

But as we readily follow an agreeable object that flies from us, so we love to contemplate blue — not because it advances to us, but because it draws us after it.»

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Johann Wolfgang von Goethe, Theory of Colors (1810), 

Citado por Maria Popova, «Goethe on the Psychology of Color and Emotion - “Color itself is a degree of darkness.”»

in https://www.brainpickings.org/2012/08/17/goethe-theory-of-colours/