The greatest value of a picture is when it forces us to notice what we never expected to see.
In rating ease of description as very important, we are essentially asserting a belief in quantitative knowledge - a belief that most of the key questions in our world sooner or later demand answers to 'by how much?' rather than merely to 'in which direction?'
An approximate answer to the right question is worth far more than a precise answer to the wrong one.
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