"money-making is like a god possessing a priest. He never will leave you, until he has occupied you, wholly changed the order of your being, and seared you through and up and down. Then only would he eventually leave you, but nothing of you except an exhausted wreck, lying prone and wondering who are you."

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The phenomena in these exhausted tubes reveal to physical science a new world-a world where matter may exist in a fourth state, where the corpuscular theory of light may be true, and where light does not always move in straight lines, but where we can never enter, and with which we must be content to observe and experiment from the outside.

— William Crookes