“Every perception of colour is an illusion.... we do not see colours as they really are. In our perception they alter one another.”
Quoted in: Abstract Art, Anna Moszynska, Thames and Hudson 1990, p. 147
Quote c. 1949, when Albers started his 'Homage to the Square' series of paintings
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Josef Albers 33
German-American artist and educator 1888–1976Related quotes

“Free will is an illusion. It is synonymous with incomplete perception.”
Source: Flashforward (1999), Chapter 12 epigram (p. 123; quoting Walter Kubilius)

The Believer interview (2013)

The Believer interview (2013)
Context: Yeah, our view of reality, the one we conventionally take, is one among many. It’s pretty much a fact that our entire universe is a mental construct. We don’t actually deal with reality directly. We simply compose a picture of reality from what’s going on in our retinas, in the timpani of our ears, and in our nerve endings. We perceive our own perception, and that perception is to us the entirety of the universe. I believe magic is, on one level, the willful attempt to alter those perceptions. Using your metaphor of an aperture, you would be widening that window or changing the angle consciously, and seeing what new vistas it affords you.

OM Chanting and Meditation (2010) http://books.google.co.uk/books/about/OM_Chanting_and_Meditation.html?id=3KKjPoFmf4YC,

Source: 1960s, The Gutenberg Galaxy (1962), p. 183

The Notebooks of Leonardo da Vinci (1883), IX The Practice of Painting