"I had always been impressed by the fact that there are a surprising number of individuals who never use their minds if they can avoid it, and an equal number who do use their minds, but in an amazingly stupid way. I was also surprised to find many intelligent and wide-awake people who lived (as far as one could make out) as if they had never learned to use their sense organs. They did not see the things before their eyes, hear the words sounding in their ears, or notice the things they touched or tasted. Some lived without being aware of the state of their own bodies."