Auguste Sabatier,
Outlines of a Philosophy of Religion based on Psychology and History
“ But, alas, my head soon runs itself against the wall of mystery. Not only are there things it does not know, but there are things which it knows for a certainty that it will never be able to know. How can a man jump off his own shadow, or stand on his own shoulders, to look over the impassable wall? That all which is intelligible to us is real, I grant; but is all that is real intelligible to us? And then what becomes my knowledge save a melancholy feeling of ignorance that knows itself to be such? The same contradiction in my faculty for enjoyment. ”
