Thornton Wilder said this quote
“ Yes, now you know. Now you know! That's what it was to be alive. To move about in a cloud of ignorance; to go up and down trampling on the feelings of those...of those about you. To spend and waste time as though you had a million years. To be always at the mercy of one self-centered passion, or another. Now you know — that's the happy existence you wanted to go back to. Ignorance and blindness. ”