Mark Twain,
Roughing It
(1872)
“ He disappeared in the gloom of a “side drift” just as a head appeared in the mouth of the shaft and somebody shouted “Hello!”—which he did not answer. He was not disturbed any more. An hour later he entered the cabin, hot, red, and ready to burst with smothered excitement, and exclaimed in a stage whisper: “I knew it! We are rich! IT’S A BLIND LEAD!” I thought the very earth reeled under me. Doubt—conviction—doubt again—exultation—hope, amazement, belief, unbelief—every emotion imaginable swept in wild procession through my heart and brain, and I could not speak a word. ”

