The Immense Capacity within Us All
"When blind people learn to see, sighted people seem inspired to want to learn to see their way better, more clearly, with less fear, because this exemplifies the immense capacity within us all to navigate any type of challenge, through any form of darkness, to discoveries unimagined when we are activated."
~ Daniel Kish, from TED, March 2015
Daniel Kish has been blind since he was 13 months old, but has learned to "see" using a form of echolocation. He clicks his tongue and sends out flashes of sound that bounce off surfaces in the environment and return to him, helping him to construct an understanding of the space around him.
See also:
“Blindness No Obstacle To Those With Sharp Ears,” All Things Considered, March 13, 2011
"How to Become Batman," Invisibilia, January 23, 2015