An eye for an eye will make the whole world blind. — Blindness

"As he went along, he saw a man blind from birth. His disciples asked him, “Rabbi, who sinned, this man or his parents, that he was born blind?” “Neither this man nor his parents sinned,” said Jesus, “but this happened so that the works of God might be displayed in him. As long as it is day, we must do the works of him who sent me. Night is coming, when no one can work. While I am in the world, I am the light of the world.” After saying this, he spit on the ground, made some mud with the saliva, and put it on the man’s eyes. “Go,” he told him, “wash in the Pool of Siloam” (this word means “Sent”). So the man went and washed, and came home seeing."

"And when a damp Fell round the path of Milton, in his hand The Thing became a trumpet; whence he blew Soul-animating strains—alas! too few."

"If the blind lead the blind, both shall fall into the ditch."

"These eyes, tho clear To outward view of blemish or of spot, Bereft of light, their seeing have forgot, Nor to their idle orbs doth sight appear Of sun, or moon, or star, throughout the year, Or man, or woman. Yet I argue not Against Heavens hand or will, nor bate a jot Of heart or hope; but still bear up and steer Right onward."

"Theres no-one as blind as the fellow that wont see."

"I who am blind can give one hint to those who see - one admonition to those who would make full use of the gift of sight: Use your eyes as if tomorrow you would be stricken blind. And the same method can be applied to other senses. Hear the music of voices, the song of a bird, the mighty strains of an orchestra, as if you would be stricken deaf to-morrow. Touch each object you want to touch as if tomorrow your tactile sense would fail. Smell the perfume of flowers, taste with relish each morsel, as if tomorrow you could never smell and taste again. Make the most of every sense; glory in all the facets of pleasure and beauty which the world reveals to you through the several means of contact which Nature provides."