" He's a feral child. No mother, no father, no one to care for him or raise him or teach him how to be human. So he's existed much like an animal, without language. He thinks in images, not word."
"How strange," Lanaya, sounding amazed.
Ryter shakes his head sadly. "Not strange, I'm afaraid. His condition is all too common in the latches. And becoming more common every day. "

― Rodman Philbrick , The Last Book in the Universe