“When one tries to rise above Nature one is liable to fall below it. The highest type of man may revert to the animal if he leaves the straight road of destiny. (…) There is danger there – a very real danger to humanity. Consider, Watson, that the material, the sensual, the worldly would all prolong their worthless lives. The spiritual would not avoid the call to something higher. It would be the survival of the least fit. What sort of cesspool may not our poor world become?”
Arthur Conan Doyle – The Adventure of the Creeping Man
“- Your life is not your own, he said. Keep your hands off it.
– What use is it to anyone?
– How can you tell? The example of patient suffering is in itself the most precious of all lessons to an impatient world.”
Arthur Conan Doyle – The Adventure of the Veiled Lodger