"Nature places a simple constraint on those who leave the flock to go their own way: they get eaten. In society it's a bit more complicated. Nonetheless the admonition stands: avoiding the unknown has considerable survival value. Society, nature, and artmaking tend to produce guarded creatures."
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Source : David Bayles, Ted Orland (2001). “Art & Fear: Observations on the Perils (and Rewards) of Artmaking”, p.68, Image Continuum Press