"The fairies are real, and I have seen them."

"Life is infinitely stranger than anything which the mind of man could invent. We would not dare to conceive the things which are really mere commonplaces of existence."

"I have a trade of my own. I suppose I am the only one in the world. I’m a consulting detective, if you can understand what that is."

"The very atmosphere of the room seemed to be impregnated with the spirit of crime."

"Every man has his own secret sorrows, which the world knows not."