The Press, Watson, is a most valuable institution, if you only know how to use it.

I said that he was my superior in observation and deduction. If the art of the detective began and ended in reasoning from an armchair, my brother would be the greatest criminal agent that ever lived. But he has no ambition and no energy. He will not even go out of his way to verify his own solutions, and would rather be considered wrong than take the trouble to prove himself right.

There is a 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?

It is, of course, a trifle, but there is nothing so important as trifles.

It is quite a three-pipe problem.

I wanted to end the world but,I'll settle for ending yours.

You will ruin no more lives as you ruined mine. You will wring no more hearts as you wrung mine. I will free the world of a poisonous thing. Take that, you hound, and that! - and that! - and that! - and that!