Cognitive neuroscience of sensory deprivation
Blind! What of that? Man has five senses; if he loses one, the vital energy on which it fed goes to intensify the other four. He had five arrows in his quiver; well, he has shot one away, and four remain. My dear, an enemy is not disarmed because he’s lost one arrow out of five.
[William Schwenck Gilbert – Pygmalion and Galatea]