"Two thirds of what we see is behind our eyes."
Chinese Proverb
"The greatest calamity that can befall people is not that they should be born blind, but rather that they should have eyes and yet fail to see."
Helen Keller, 1880-1968
"It is only with heat that one can see rightly; What is essential is INVISIBLE TO THE EYE."
Antoine de Saint-Exupery, 1900-44