“When you get rid of the impossible, what's left is the only answer, no matter how improbable.”
“Well, I think," said Nobby, "that when you rule out the impossible, whatever is left, however improbable, ain't worth hanging around for on a cold night wonderin' about when you could be getting on the outside of a big drink.”
“How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth?”
“When the impossible is eliminated, whatever remains, however improbable, is the solution ... unless you're mistaken as to just what is and what isn't impossible.”
“Sherlock Holmes observed that once you have eliminated the impossible then whatever remains, however improbable, must be the answer. I, however, do not like to eliminate the impossible.”
“No matter how cynical you get, it is impossible to keep up.”