"I soon felt that strange and mysterious sensation which is awakened in the mind when looking down from lofty hilltops, and now I was able to do so without any feeling of nervousness, having fortunately hardened myself to that kind of sublime contemplation. I wholly forgot who I was, and where I was. I became intoxicated with a sense of lofty sublimity, without thought of the abysses into which my daring was soon about to plunge me."

-Jules Verne,
"Journey To The Center Of The Earth"