“A blind man's world is bounded by the limits of his touch; an ignorant man's world by the limits of his knowledge: a great man's world by the limits of his vision.”
“Every Man Mistakes the Limits of His Vision For The Limits Of The World..”
“Every man takes the limits of his own field of vision for the limits of the world.”
“Everyone takes the limits of his own vision for the limits of the world.”
“A man who limits his interests limits his life.”
“A man has to know his limitations.”