Catch-22 by Heller. I'm sure all you Euros have heard of this one before
Blindness by Saramago is also a good book.
"We were blind the moment we became blind, fear struck us blind, fear will keep us blind." (117)
"Inside us there is something that ha sno name, that something is what we are." (248)
"images see with the eyes of those who see them..." (317)
"God does not deserve to see." (318)
"I don't think we did go blind, I think we are blind, Blind but seeing, Blind people who can see, but do not see." (326)
I highly suggest
Blindness and these quotes while reading...
"Let them alone: they be blind leaders of the blind. And if the blind lead the blind, both shall fall into the ditch." Matthew 15:14
"Men... would rather believe than know." Edward O. Wilson
"eyes were like a flame of fire... whose face was like the sun shining in full strength... I fell at [God's] feet as though dead." Revelation 1:12-7